Question 1
A 3x3 grid figure (X) is shown next to a mirror placed along MN in the diagram below. Select the option that correctly shows its mirror image.

a 3 by 3 grid square with a diagonal line in one cell and a solid shaded cell, next to a dashed vertical mirror line MN, with four candidate answer grids numbered 1 to 4
A
Option 1✓✗
B
Option 2✓✗
C
Option 3✓✗
D
Option 4✓✗
Explanation
When a mirror is placed vertically along MN, the whole figure undergoes a lateral inversion: the grid lines themselves look the same (a uniform grid is unchanged by reflection), but the diagonal line and the shaded cell both swap sides and the diagonal's own slope direction flips.
Option 1 is simply the original grid unchanged.
Option 3 has the diagonal correctly repositioned and flipped, but the shaded cell was left in its original corner instead of also moving to the mirrored corner.
Option 4 shows the grid flipped top-to-bottom instead, as for a water image, not a side mirror.
Option 2 correctly repositions and flips both the diagonal and the shaded cell, so it is the true mirror image.
Shortcut Method
Vertical mirror (MN) → grid lines unchanged, diagonal and shaded cell both move sides and flip
∴ Option 2 is the true mirror image ✓
Question 2
Study the 2x3 grid figure and the mirror line MN shown below. Which of the four options is its correct mirror image?

a 2 by 3 grid rectangle with a diagonal line in one cell and a solid shaded cell, next to a dashed vertical mirror line MN, with four candidate answer grids numbered 1 to 4
A
Option 1✓✗
B
Option 2✓✗
C
Option 3✓✗
D
Option 4✓✗
Explanation
A mirror placed vertically at MN leaves the uniform grid lines looking the same, but the diagonal line and the shaded cell both swap sides and the diagonal's slope flips.
Option 2 has the diagonal correctly repositioned and flipped, but the shaded cell was left in its original corner instead of also moving.
Option 3 shows the grid flipped top-to-bottom instead, as for a water image.
Option 4 is simply the original grid unchanged.
Option 1 correctly repositions and flips both accents, so it is the true mirror image.
Shortcut Method
Vertical mirror (MN) → grid lines unchanged, diagonal and shaded cell both move sides and flip
∴ Option 1 is the true mirror image ✓
Question 3
The figure below shows a 3x2 grid next to a mirror placed along MN. Choose the option that correctly represents its mirror image.

a 3 by 2 grid rectangle with a diagonal line in one cell and a solid shaded cell, next to a dashed vertical mirror line MN, with four candidate answer grids numbered 1 to 4
A
Option 1✓✗
B
Option 2✓✗
C
Option 3✓✗
D
Option 4✓✗
Explanation
A mirror placed vertically at MN leaves the uniform grid lines looking the same, but the diagonal line and the shaded cell both swap sides and the diagonal's slope flips.
Option 1 shows the grid flipped top-to-bottom instead, as for a water image.
Option 2 is simply the original grid unchanged.
Option 4 has the diagonal correctly repositioned and flipped, but the shaded cell was left in its original corner instead of also moving.
Option 3 correctly repositions and flips both accents, so it is the true mirror image.
Shortcut Method
Vertical mirror (MN) → grid lines unchanged, diagonal and shaded cell both move sides and flip
∴ Option 3 is the true mirror image ✓
Question 4
If the mirror shown below is placed along MN, which option correctly shows the reflected image of the 2x2 grid figure?

a 2 by 2 grid square with a diagonal line in one cell and a solid shaded cell, next to a dashed vertical mirror line MN, with four candidate answer grids numbered 1 to 4
A
Option 1✓✗
B
Option 2✓✗
C
Option 3✓✗
D
Option 4✓✗
Explanation
A mirror placed vertically at MN leaves the uniform grid lines looking the same, but the diagonal line and the shaded cell both swap sides and the diagonal's slope flips.
Option 1 has the diagonal correctly repositioned and flipped, but the shaded cell was left in its original corner instead of also moving.
Option 3 is simply the original grid unchanged.
Option 4 shows the grid flipped top-to-bottom instead, as for a water image.
Option 2 correctly repositions and flips both accents, so it is the true mirror image.
Shortcut Method
Vertical mirror (MN) → grid lines unchanged, diagonal and shaded cell both move sides and flip
∴ Option 2 is the true mirror image ✓
Question 5
Examine the 3x3 grid figure and mirror line MN given below. Which of the options (1) to (4) is the correct mirror image?

a second 3 by 3 grid square with a diagonal line in one cell and a solid shaded cell in a different pattern, next to a dashed vertical mirror line MN, with four candidate answer grids numbered 1 to 4
A
Option 1✓✗
B
Option 2✓✗
C
Option 3✓✗
D
Option 4✓✗
Explanation
A mirror placed vertically at MN leaves the uniform grid lines looking the same, but the diagonal line and the shaded cell both swap sides and the diagonal's slope flips.
Option 1 is simply the original grid unchanged.
Option 2 has the diagonal correctly repositioned and flipped, but the shaded cell was left in its original corner instead of also moving.
Option 3 shows the grid flipped top-to-bottom instead, as for a water image.
Option 4 correctly repositions and flips both accents, so it is the true mirror image.
Shortcut Method
Vertical mirror (MN) → grid lines unchanged, diagonal and shaded cell both move sides and flip
∴ Option 4 is the true mirror image ✓
Question 6
A mirror is placed along the line MN shown in the figure below. Choose the option that shows the correct mirror image of the 2x4 grid.

a 2 by 4 grid rectangle with a diagonal line in one cell and a solid shaded cell, next to a dashed vertical mirror line MN, with four candidate answer grids numbered 1 to 4
A
Option 1✓✗
B
Option 2✓✗
C
Option 3✓✗
D
Option 4✓✗
Explanation
A mirror placed vertically at MN leaves the uniform grid lines looking the same, but the diagonal line and the shaded cell both swap sides and the diagonal's slope flips.
Option 2 shows the grid flipped top-to-bottom instead, as for a water image.
Option 3 has the diagonal correctly repositioned and flipped, but the shaded cell was left in its original corner instead of also moving.
Option 4 is simply the original grid unchanged.
Option 1 correctly repositions and flips both accents, so it is the true mirror image.
Shortcut Method
Vertical mirror (MN) → grid lines unchanged, diagonal and shaded cell both move sides and flip
∴ Option 1 is the true mirror image ✓
Question 7
Observe the 4x2 grid figure and the mirror line MN given below. Select the option that correctly shows the resulting mirror image.

a 4 by 2 grid rectangle with a diagonal line in one cell and a solid shaded cell, next to a dashed vertical mirror line MN, with four candidate answer grids numbered 1 to 4
A
Option 1✓✗
B
Option 2✓✗
C
Option 3✓✗
D
Option 4✓✗
Explanation
A mirror placed vertically at MN leaves the uniform grid lines looking the same, but the diagonal line and the shaded cell both swap sides and the diagonal's slope flips.
Option 1 has the diagonal correctly repositioned and flipped, but the shaded cell was left in its original corner instead of also moving.
Option 2 shows the grid flipped top-to-bottom instead, as for a water image.
Option 3 is simply the original grid unchanged.
Option 4 correctly repositions and flips both accents, so it is the true mirror image.
Shortcut Method
Vertical mirror (MN) → grid lines unchanged, diagonal and shaded cell both move sides and flip
∴ Option 4 is the true mirror image ✓
Question 8
A circle divided into four parts by cross-lines is shown as figure (X) below, next to a mirror placed along MN. Select its correct mirror image.

a circle divided into four parts by cross-lines, with one quarter shaded black and a short tick mark near the edge, next to a dashed vertical mirror line MN, with four candidate answer circles numbered 1 to 4
A
Option 1✓✗
B
Option 2✓✗
C
Option 3✓✗
D
Option 4✓✗
Explanation
A mirror placed vertically at MN leaves the circle outline and cross-lines looking the same, but the shaded quarter and the small tick mark both move to their mirrored positions.
Option 1 is simply the original circle unchanged.
Option 2 shows the circle flipped top-to-bottom instead, as for a water image.
Option 4 has the shaded quarter correctly repositioned, but the tick mark was left at its original spot instead of also moving.
Option 3 correctly repositions both the shaded quarter and the tick mark, so it is the true mirror image.
Shortcut Method
Vertical mirror (MN) → circle outline unchanged, shaded wedge and tick mark both move to mirrored positions
∴ Option 3 is the true mirror image ✓
Question 9
The circle figure below, with cross-lines and a shaded quarter, sits next to a mirror placed along MN. Which option is its true mirror image?

a circle divided into four parts by cross-lines, with a different quarter shaded black and a short tick mark near the edge, next to a dashed vertical mirror line MN, with four candidate answer circles numbered 1 to 4
A
Option 1✓✗
B
Option 2✓✗
C
Option 3✓✗
D
Option 4✓✗
Explanation
A mirror placed vertically at MN leaves the circle outline and cross-lines looking the same, but the shaded quarter and the small tick mark both move to their mirrored positions.
Option 2 has the shaded quarter correctly repositioned, but the tick mark was left at its original spot instead of also moving.
Option 3 shows the circle flipped top-to-bottom instead, as for a water image.
Option 4 is simply the original circle unchanged.
Option 1 correctly repositions both the shaded quarter and the tick mark, so it is the true mirror image.
Shortcut Method
Vertical mirror (MN) → circle outline unchanged, shaded wedge and tick mark both move to mirrored positions
∴ Option 1 is the true mirror image ✓
Question 10
Given below is a circle figure (X) next to a mirror placed along MN. Choose the option that correctly shows the mirror image of the circle.

a circle divided into four parts by cross-lines, with a narrower shaded wedge and a short tick mark near the edge, next to a dashed vertical mirror line MN, with four candidate answer circles numbered 1 to 4
A
Option 1✓✗
B
Option 2✓✗
C
Option 3✓✗
D
Option 4✓✗
Explanation
A mirror placed vertically at MN leaves the circle outline and cross-lines looking the same, but the shaded wedge and the small tick mark both move to their mirrored positions.
Option 1 shows the circle flipped top-to-bottom instead, as for a water image.
Option 3 is simply the original circle unchanged.
Option 4 has the shaded wedge correctly repositioned, but the tick mark was left at its original spot instead of also moving.
Option 2 correctly repositions both the shaded wedge and the tick mark, so it is the true mirror image.
Shortcut Method
Vertical mirror (MN) → circle outline unchanged, shaded wedge and tick mark both move to mirrored positions
∴ Option 2 is the true mirror image ✓
Question 11
Study the circle figure and the mirror line MN shown below. Which of the following options is the correct mirror image?

a circle divided into four parts by cross-lines, with a diagonally placed shaded wedge and a short tick mark near the edge, next to a dashed vertical mirror line MN, with four candidate answer circles numbered 1 to 4
A
Option 1✓✗
B
Option 2✓✗
C
Option 3✓✗
D
Option 4✓✗
Explanation
A mirror placed vertically at MN leaves the circle outline and cross-lines looking the same, but the shaded wedge and the small tick mark both move to their mirrored positions.
Option 1 has the shaded wedge correctly repositioned, but the tick mark was left at its original spot instead of also moving.
Option 3 is simply the original circle unchanged.
Option 4 shows the circle flipped top-to-bottom instead, as for a water image.
Option 2 correctly repositions both the shaded wedge and the tick mark, so it is the true mirror image.
Shortcut Method
Vertical mirror (MN) → circle outline unchanged, shaded wedge and tick mark both move to mirrored positions
∴ Option 2 is the true mirror image ✓
Question 12
A square split by both its diagonals is shown as figure (X) below, next to a mirror placed along MN. Which option shows its correct mirror image?

a square split into four triangles by its diagonals, with the top triangle shaded black and a small red marker triangle near one corner, next to a dashed vertical mirror line MN, with four candidate answer squares numbered 1 to 4
A
Option 1✓✗
B
Option 2✓✗
C
Option 3✓✗
D
Option 4✓✗
Explanation
A mirror placed vertically at MN leaves the square outline and its two diagonals looking the same, but the shaded triangle swaps to the mirrored triangle and the small corner marker moves to the mirrored corner.
Option 1 has the shaded triangle correctly repositioned, but the corner marker was left at its original corner instead of also moving.
Option 2 is simply the original square unchanged.
Option 4 shows the square flipped top-to-bottom instead, as for a water image.
Option 3 correctly repositions both the shaded triangle and the corner marker, so it is the true mirror image.
Shortcut Method
Vertical mirror (MN) → square and diagonals unchanged, shaded triangle and corner marker both move to mirrored positions
∴ Option 3 is the true mirror image ✓
Question 13
The figure below shows a diagonally split square next to a mirror placed along MN. Select the option that correctly represents its mirror image.

a square split into four triangles by its diagonals, with the bottom triangle shaded black and a small red marker triangle near one corner, next to a dashed vertical mirror line MN, with four candidate answer squares numbered 1 to 4
A
Option 1✓✗
B
Option 2✓✗
C
Option 3✓✗
D
Option 4✓✗
Explanation
A mirror placed vertically at MN leaves the square outline and its two diagonals looking the same, but the shaded triangle swaps to the mirrored triangle and the small corner marker moves to the mirrored corner.
Option 1 shows the square flipped top-to-bottom instead, as for a water image.
Option 2 has the shaded triangle correctly repositioned, but the corner marker was left at its original corner instead of also moving.
Option 3 is simply the original square unchanged.
Option 4 correctly repositions both the shaded triangle and the corner marker, so it is the true mirror image.
Shortcut Method
Vertical mirror (MN) → square and diagonals unchanged, shaded triangle and corner marker both move to mirrored positions
∴ Option 4 is the true mirror image ✓
Question 14
A mirror is positioned along the line MN in the figure below. Which of the four options is the correct mirror image of the diagonally split square?

a square split into four triangles by its diagonals, with the left triangle shaded black and a small red marker triangle near one corner, next to a dashed vertical mirror line MN, with four candidate answer squares numbered 1 to 4
A
Option 1✓✗
B
Option 2✓✗
C
Option 3✓✗
D
Option 4✓✗
Explanation
A mirror placed vertically at MN leaves the square outline and its two diagonals looking the same, but the shaded triangle swaps to the mirrored triangle and the small corner marker moves to the mirrored corner.
Option 2 is simply the original square unchanged.
Option 3 shows the square flipped top-to-bottom instead, as for a water image.
Option 4 has the shaded triangle correctly repositioned, but the corner marker was left at its original corner instead of also moving.
Option 1 correctly repositions both the shaded triangle and the corner marker, so it is the true mirror image.
Shortcut Method
Vertical mirror (MN) → square and diagonals unchanged, shaded triangle and corner marker both move to mirrored positions
∴ Option 1 is the true mirror image ✓
Question 15
Observe the diagonally split square and the mirror line MN given below. Select the option that correctly shows the resulting mirror image.

a square split into four triangles by its diagonals, with the right triangle shaded black and a small red marker triangle near one corner, next to a dashed vertical mirror line MN, with four candidate answer squares numbered 1 to 4
A
Option 1✓✗
B
Option 2✓✗
C
Option 3✓✗
D
Option 4✓✗
Explanation
A mirror placed vertically at MN leaves the square outline and its two diagonals looking the same, but the shaded triangle swaps to the mirrored triangle and the small corner marker moves to the mirrored corner.
Option 1 has the shaded triangle correctly repositioned, but the corner marker was left at its original corner instead of also moving.
Option 3 shows the square flipped top-to-bottom instead, as for a water image.
Option 4 is simply the original square unchanged.
Option 2 correctly repositions both the shaded triangle and the corner marker, so it is the true mirror image.
Shortcut Method
Vertical mirror (MN) → square and diagonals unchanged, shaded triangle and corner marker both move to mirrored positions
∴ Option 2 is the true mirror image ✓
Question 16
A four-bladed pinwheel figure (X) is shown below next to a mirror placed along MN. Which option correctly shows its mirror image?

a rotational pinwheel figure with four star-shaped blades, one blade shaded black and a small red dot marking the tip of another blade, next to a dashed vertical mirror line MN, with four candidate answer pinwheels numbered 1 to 4
A
Option 1✓✗
B
Option 2✓✗
C
Option 3✓✗
D
Option 4✓✗
Explanation
A mirror placed vertically at MN leaves the pinwheel's spokes looking the same overall shape, but the shaded blade swaps to its mirrored position and the small red dot marker moves to the mirrored blade tip.
Option 1 has the shaded blade correctly repositioned, but the dot marker was left on its original blade tip instead of also moving.
Option 2 shows the pinwheel flipped top-to-bottom instead, as for a water image.
Option 3 is simply the original pinwheel unchanged.
Option 4 correctly repositions both the shaded blade and the dot marker, so it is the true mirror image.
Shortcut Method
Vertical mirror (MN) → pinwheel spokes unchanged, shaded blade and dot marker both move to mirrored positions
∴ Option 4 is the true mirror image ✓
Question 17
Given below is a three-bladed pinwheel figure next to a mirror placed along MN. Choose the option that correctly shows the mirror image of the figure.

a rotational pinwheel figure with three star-shaped blades, one blade shaded black and a small red dot marking the tip of another blade, next to a dashed vertical mirror line MN, with four candidate answer pinwheels numbered 1 to 4
A
Option 1✓✗
B
Option 2✓✗
C
Option 3✓✗
D
Option 4✓✗
Explanation
A mirror placed vertically at MN leaves the pinwheel's spokes looking the same overall shape, but the shaded blade swaps to its mirrored position and the small red dot marker moves to the mirrored blade tip.
Option 1 shows the pinwheel flipped top-to-bottom instead, as for a water image.
Option 2 has the shaded blade correctly repositioned, but the dot marker was left on its original blade tip instead of also moving.
Option 4 is simply the original pinwheel unchanged.
Option 3 correctly repositions both the shaded blade and the dot marker, so it is the true mirror image.
Shortcut Method
Vertical mirror (MN) → pinwheel spokes unchanged, shaded blade and dot marker both move to mirrored positions
∴ Option 3 is the true mirror image ✓
Question 18
A fan made of three concentric arcs is shown as figure (X) below, next to a mirror placed along MN. Which of the four options is its correct mirror image?

a fan made of three concentric arcs opening towards the right, with a short red tick mark crossing the outer arc, next to a dashed vertical mirror line MN, with four candidate answer fans numbered 1 to 4
A
Option 1✓✗
B
Option 2✓✗
C
Option 3✓✗
D
Option 4✓✗
Explanation
A mirror placed vertically at MN moves the whole arc-fan (which side it opens towards) to the mirrored side, and the small red tick mark on the outer arc also moves to its mirrored position along with it.
Option 2 has the fan correctly mirrored, but the tick mark was left at its original spot instead of also moving with it.
Option 3 is simply the original fan unchanged.
Option 4 shows the fan flipped top-to-bottom instead, as for a water image.
Option 1 correctly mirrors both the fan and the tick mark together, so it is the true mirror image.
Shortcut Method
Vertical mirror (MN) → the whole fan (including its tick mark) reflects together to the opposite side
∴ Option 1 is the true mirror image ✓
Question 19
The sheet of figure (X) below, a fan of three concentric arcs, sits next to a mirror placed along MN. Which of the four options correctly shows the mirror image?

a fan made of three concentric arcs opening towards the left, with a short red tick mark crossing the outer arc, next to a dashed vertical mirror line MN, with four candidate answer fans numbered 1 to 4
A
Option 1✓✗
B
Option 2✓✗
C
Option 3✓✗
D
Option 4✓✗
Explanation
A mirror placed vertically at MN moves the whole arc-fan (which side it opens towards) to the mirrored side, and the small red tick mark on the outer arc also moves to its mirrored position along with it.
Option 1 is simply the original fan unchanged.
Option 2 shows the fan flipped top-to-bottom instead, as for a water image.
Option 4 has the fan correctly mirrored, but the tick mark was left at its original spot instead of also moving with it.
Option 3 correctly mirrors both the fan and the tick mark together, so it is the true mirror image.
Shortcut Method
Vertical mirror (MN) → the whole fan (including its tick mark) reflects together to the opposite side
∴ Option 3 is the true mirror image ✓
Question 20
What is the mirror image of the word GARDEN when a mirror is placed along MN, as shown in the figure below?

the word GARDEN in a cursive script (X) next to a dashed vertical mirror line MN, with four candidate renderings of the word numbered 1 to 4
A
Option 1✓✗
B
Option 2✓✗
C
Option 3✓✗
D
Option 4✓✗
Explanation
The mirror image of a word reverses the order of the letters AND flips each individual letter left-to-right -- both effects happen together, since the whole word is reflected as one shape.
Option 1 is simply the original word GARDEN, unchanged.
Option 3 shows the letters in reverse order (NEDRAG) but each letter printed normally, not flipped -- reversing the order alone is not the same as mirroring.
Option 4 shows the word flipped top-to-bottom (upside down) instead of left-to-right, which is not what a side mirror produces.
Option 2 correctly reverses the letter order AND mirrors every letter, so it is the true mirror image.
Shortcut Method
Word mirror = letters in reverse order AND each letter flipped left-right, together
∴ Option 2 is the true mirror image ✓
Question 21
A mirror is placed along MN next to the word PLANET, as shown in the figure below. Which option shows the correct mirror image of the word?

the word PLANET in a cursive script (X) next to a dashed vertical mirror line MN, with four candidate renderings of the word numbered 1 to 4
A
Option 1✓✗
B
Option 2✓✗
C
Option 3✓✗
D
Option 4✓✗
Explanation
The mirror image of a word reverses the order of the letters AND flips each individual letter left-to-right, both together.
Option 1 shows the letters in reverse order (TENALP) but each letter printed normally, not flipped.
Option 2 shows the word flipped top-to-bottom (upside down) instead of left-to-right.
Option 3 is simply the original word PLANET, unchanged.
Option 4 correctly reverses the letter order AND mirrors every letter, so it is the true mirror image.
Shortcut Method
Word mirror = letters in reverse order AND each letter flipped left-right, together
∴ Option 4 is the true mirror image ✓
Question 22
The figure below shows the word MARKET next to a mirror placed along MN. Select the option that correctly shows the mirror image of the word.

the word MARKET in a cursive script (X) next to a dashed vertical mirror line MN, with four candidate renderings of the word numbered 1 to 4
A
Option 1✓✗
B
Option 2✓✗
C
Option 3✓✗
D
Option 4✓✗
Explanation
The mirror image of a word reverses the order of the letters AND flips each individual letter left-to-right, both together.
Option 2 is simply the original word MARKET, unchanged.
Option 3 shows the word flipped top-to-bottom (upside down) instead of left-to-right.
Option 4 shows the letters in reverse order (TEKRAM) but each letter printed normally, not flipped.
Option 1 correctly reverses the letter order AND mirrors every letter, so it is the true mirror image.
Shortcut Method
Word mirror = letters in reverse order AND each letter flipped left-right, together
∴ Option 1 is the true mirror image ✓
Question 23
Given below is the word SILVER next to a mirror placed along MN. Choose the option that correctly shows the word's mirror image.

the word SILVER in a cursive script (X) next to a dashed vertical mirror line MN, with four candidate renderings of the word numbered 1 to 4
A
Option 1✓✗
B
Option 2✓✗
C
Option 3✓✗
D
Option 4✓✗
Explanation
The mirror image of a word reverses the order of the letters AND flips each individual letter left-to-right, both together.
Option 1 shows the word flipped top-to-bottom (upside down) instead of left-to-right.
Option 2 shows the letters in reverse order (REVLIS) but each letter printed normally, not flipped.
Option 4 is simply the original word SILVER, unchanged.
Option 3 correctly reverses the letter order AND mirrors every letter, so it is the true mirror image.
Shortcut Method
Word mirror = letters in reverse order AND each letter flipped left-right, together
∴ Option 3 is the true mirror image ✓
Question 24
A clock shows the time given in figure (X) below. If this clock is viewed in a mirror placed along MN, which of the four candidate clocks correctly shows the mirror image?

an analogue clock (X) showing 4:20 next to a dashed vertical mirror line MN, with four candidate clock faces numbered 1 to 4
A
Option 1✓✗
B
Option 2✓✗
C
Option 3✓✗
D
Option 4✓✗
Explanation
A clock reflected in a vertical mirror has both its hour hand and its minute hand mirrored: a hand sitting at an angle theta clockwise from 12 moves to the angle (360 - theta). This is equivalent to the well-known rule that the mirror time equals 11 hours 60 minutes minus the given time.
Option 1 is simply the original clock (4:20) unchanged.
Option 3 has the hour hand correctly mirrored but the minute hand left at its original angle -- only one hand was reflected.
Option 4 shows the clock reflected as if in water (top-bottom inversion) rather than in a side mirror.
Option 2 correctly mirrors both hands, showing the time 7:40, so it is the true mirror image.
Shortcut Method
Mirror time = 11:60 - given time
11:60 - 4:20 = 7:40 (both hands mirrored)
∴ Option 2 is the true mirror image ✓
Question 25
Figure (X) below shows a clock next to a mirror placed along MN. Select the candidate clock that correctly shows what the mirror would display.

an analogue clock (X) showing 9:15 next to a dashed vertical mirror line MN, with four candidate clock faces numbered 1 to 4
A
Option 1✓✗
B
Option 2✓✗
C
Option 3✓✗
D
Option 4✓✗
Explanation
A clock reflected in a vertical mirror has both its hour hand and its minute hand mirrored: a hand sitting at an angle theta clockwise from 12 moves to the angle (360 - theta). This is equivalent to the well-known rule that the mirror time equals 11 hours 60 minutes minus the given time.
Option 1 has the hour hand left at its original angle while only the minute hand is mirrored -- just one hand was reflected.
Option 2 shows the clock reflected as if in water (top-bottom inversion) rather than in a side mirror.
Option 3 is simply the original clock (9:15) unchanged.
Option 4 correctly mirrors both hands, showing the time 2:45, so it is the true mirror image.
Shortcut Method
Mirror time = 11:60 - given time
11:60 - 9:15 = 2:45 (both hands mirrored)
∴ Option 4 is the true mirror image ✓
Share: