Aptitude Test for Computer and IT Engineers - Set 2

1)   If successive discounts are 15% and 10% then, what is its single equivalent discount?

a. 12.5%
b. 24.5%
c. 23.5%
d. 20%
Answer  Explanation 

ANSWER: 23.5%

Explanation:
discount


2)   If a book costs Rs. 900 and is sold with a profit of 10% and discount of 12% then, the advertised price is?

a. Rs. 1050
b. Rs. 1125
c. Rs. 812.5
d. Rs. 1225
Answer  Explanation 

ANSWER: Rs. 1125

Explanation:
discount


3)   When will the clock’s hands be in a straight line but pointing in opposite directions between 2 am and 3 am?

a. 43(7/11) minutes past 2 am
b. 25(1/11) minutes before 3 am
c. 38(7/11) minutes before 3 am
d. 50(5/11) minutes past 2 am
Answer  Explanation 

ANSWER: 43(7/11) minutes past 2 am

Explanation:
clocks


4)   In a poultry farm having hens and pigs, Rohan can see 84 heads and 282 legs. How many hens are there?

a. 54
b. 30
c. 27
d. 57
Answer  Explanation 

ANSWER: 27

Explanation:
problems on numbers


5)   In an area 2% families have 5 children each. But 8% have no children at all. Amongst the rest of the families 18% have 4 children and 27% have only one child. How many families live in the area, if 297 families have either 2 or 3 children each?

a. 550
b. 600
c. 850
d. 725
Answer  Explanation 

ANSWER: 600

Explanation:
problems on numbers


6)   If a fraction’s denominator is decreased by 80% and numerator is increased by 300%, the fraction becomes 2/9. What is the fraction?

a. 8/9
b. 6/45
c. 1/90
d. 6/72
Answer  Explanation 

ANSWER: 1/90

Explanation:
fractions


7)   What is LCM of  36/225, 48/150 , 72/65 ?

a. 36/65
b. 144/5
c. 72/225
d. 288/5
Answer  Explanation 

ANSWER: 144/5

Explanation:
hcf lcm


8)   HCF and LCM of two numbers is 8 and 96. Sum of those numbers is 56. Then what is sum of their reciprocals?

a. 1/56
b. 7/96
c. 1/96
d. 1/8
Answer  Explanation 

ANSWER: 7/96

Explanation:
hcf lcm


9)   Rajesh had to arrange his books in uniform groups. He makes groups of 4 books each. But 3 books are left. He tries it with groups of 5 books each. But still 3 books are left. 3 books are still left when he tried with groups of 9 or 10 books each. How many books does he have?

a. 90
b. 180
c. 900
d. 183
Answer  Explanation 

ANSWER: 183

Explanation:
hcf lcm


10)   What is cube root of (-21952)?

a. 38
b. 27
c. -28
d. 34
Answer  Explanation 

ANSWER: -28

Explanation:
square and cube root


11)   Pune’s population starts decreasing from 272000 at the rate of 2700 per year. Satara’s population starts increasing at the same time from 190000 at the rate of 1400 per year. When will both the cities have same population?

a. 15 years
b. 20 years
c. 10 years
d. 16 years
Answer  Explanation 

ANSWER: 20 years

Explanation:
simplification


12)   simplification

a. 9
b. 250
c. 1.072
d. 1.060
Answer  Explanation 

ANSWER: 250

Explanation:
simplification


13)   What is value of 5.55+5+5.5+5.555+5.05+5.00?

a. 30.5
b. 32.155
c. 31.655
d. 31.725
Answer  Explanation 

ANSWER: 31.655

Explanation:
decimals


14)   A man had 0.08 part of his wealth invested in Stocks, 0.3 part in FDs, 0.4 part amounting to Rs. 2400 as gold and rest in cash. How much total cash and stocks does he have?

a. Rs. 1600
b. Rs. 1800
c. Rs. 2000
d. Rs. 1500
Answer  Explanation 

ANSWER: Rs. 1800

Explanation:
decimals


15)   A mixture consists of some amount of sandalwood oil and 240 litres of water. It is priced at Rs. 275 per litre.  Sandalwood oil is priced Rs. 325 per litre. How much oil is there in the mixture?

a. 720 litres
b. 1000 litres
c. 1320 litres
d. 1200 litres
Answer  Explanation 

ANSWER: 1320 litres

Explanation:
mixture


16)   3 types of Sugar got mixed by accident in a shop. First was of the rate Rs. 145 per kg and Second of Rs. 165 per kg. Only thing the shop owner knew that quantities of 3 sugar types were in the ratio 2:1:3 respectively. He finally sold the mix at rate of Rs. 180 per kg. What was price of 3rd type?

a. Rs. 208.33
b. Rs. 210
c. Rs. 215.67
d. Rs. 196.58
Answer  Explanation 

ANSWER: Rs. 208.33

Explanation:
mixture


17)   Ratio of profits of P, Q and R are 5 : 8 : 9 respectively. What is their investment ratio if their investment time period ratio is 2 : 5 : 8 respectively?

a. 110:74:64
b. 7:13:17
c. 100:64:45
d. 10:40:72
Answer  Explanation 

ANSWER: 100:64:45

Explanation:
partnership


18)   Ajay incurred loss of 20% by selling a vase for Rs. 2880. To get a profit of 20% at what price should he sell the vase?

a. Rs. 4320
b. Rs. 5760
c. Rs. 1440
d. Rs. 3500
Answer  Explanation 

ANSWER: Rs. 4320

Explanation:
profit loss


19)   A cheater manipulated his weighing machine so that it shows 1kg for 970 grams. How much profit does he get?

a. 397/100%
b. 0.3 %
c. 0.03%
d. 300/97%
Answer  Explanation 

ANSWER: 300/97%

Explanation:
profit loss


20)   There are 8 routes from London to Delhi. And there are 6 routes from Delhi to Tokyo. In how many different ways can Raj travel from London to Tokyo via Delhi?

a. 100
b. 48
c. 24
d. 14
Answer  Explanation 

ANSWER: 48

Explanation:
permutation combination