Average - Quantitative Aptitude (MCQ) questions

1)   Average age of 7 family members is 75 years. But average age of 6 of them is 74 years 6 months. What is the age of the 7th family member?

- Published on 11 Apr 17

a. 75.5
b. 78
c. 68
d. 80
Answer  Explanation 

ANSWER: 78

Explanation:
average


2)   Average age of 5 people is 42 years. Another group has 8 people who have average age of 81 years. When both groups are mixed what is average age of all people?
- Published on 11 Apr 17

a. 64 years
b. 66 years
c. 61.5 years
d. 70 years
Answer  Explanation 

ANSWER: 66 years

Explanation:
averages


3)   Average age of 5 people in a family is 55 years. However it is seen that 3 of the 5 people also have an average age of 55 years. What will be the average age of remaining two people of the family?
- Published on 11 Apr 17

a. 82.5 years
b. 27.5 years
c. 55 years
d. 110 years
Answer  Explanation 

ANSWER: 55 years

Explanation:
average


4)   Which of the following exactly denotes the average price of all the goods together if, Ramesh buys ‘a’ number of goods of type ‘A’ at price of Rs. ‘E’ each, ‘b’ number of goods of type ‘B’ at price of Rs. ‘F’ each and ‘c’ number of goods of type ‘C’ at price of Rs. ‘G’ each?
- Published on 11 Apr 17

a. (E+F+G) / (a+b+c)
b. (AE+BF+CG) / (a+b+c)
c. (aE+bF+cG) / (a+b+c)
d. (aA+bB+cC) / (a+b+c)
Answer  Explanation 

ANSWER: (aE+bF+cG) / (a+b+c)

Explanation:
average


5)   The average of fifty numbers is 28. If two numbers, namely 25 and 35 are discarded, the average of the remaining numbers is nearly,
- Published on 05 Apr 17

a. 29.27
b. 27.92
c. 27.29
d. 29.72
Answer  Explanation 

ANSWER: 27.92

Explanation:
average


6)   The average of three numbers is 77. The first number is twice the second and the second number is twice the third. Find the first number.
- Published on 05 Apr 17

a. 33
b. 66
c. 77
d. 132
Answer  Explanation 

ANSWER: 132

Explanation:
average


7)   Average age of A and B is 30 years, that of B and C is 32 years and the average age of C and A is 34 years. The age of C is
- Published on 05 Apr 17

a. 33 years
b. 34 years
c. 35 years
d. 36 years
Answer  Explanation 

ANSWER: 36 years

Explanation:
average


8)   3 boxes have some average weight. When one box which weighs 89 kg is replaced by another box, the average weight increases by 5 kg. How much the new box weighs?
- Published on 17 Mar 17

a. 109 kg
b. 94 kg
c. 104 kg
d. 84 kg
Answer  Explanation 

ANSWER: 104 kg

Explanation:
averages


9)   Knowing that Vijay’s expenditure for first 3 days is Rs. 100, Rs. 125 and Rs. 85, what is his 4th day expenditure as his 4 days average expenditure Rs. 90?
- Published on 17 Mar 17

a. Rs. 220
b. Rs. 60
c. Rs. 50
d. Rs. 90
Answer  Explanation 

ANSWER: Rs. 50

Explanation:
averages


10)   Without considering the salary of the boss, the average salary reduces by Rs. 1000. What will be salary of boss if average salary of 11 employees and the boss is Rs. 18000?
- Published on 15 Mar 17

a. Rs. 30000
b. Rs. 27000
c. Rs. 36000
d. Rs. 29000
Answer  Explanation 

ANSWER: Rs. 29000

Explanation:
averages


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