Practice Questions on Averages
Aptitude Questions and Answers

Moderate Averages Question - 6

Q6.

Which one of the following numbers can be removed from the set $S$ = {0, 2, 4, 5, 9} without changing the average of set $S$?

A.

0

B.

2

C.

4

D.

5

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Moderate Averages Question - 7

Q7.

Average cost of 5 apples and 4 mangoes is Rs. 36. The average cost of 7 apples and 8 mangoes is Rs. 48. Find the total cost of 24 apples and 24 mangoes.

A.

1044

B.

2088

C.

720

D.

324

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Moderate Averages Question - 8

Q8.

Average of ten positive numbers is $x$. If each number is increased by $10\%$, then $x$ :

A.

remains unchanged

B.

may decrease

C.

may increase

D.

is increased by $10\%$

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Moderate Averages Question - 9

Q9.

The average weight of three boys $A, B$ and $C$ is (54dfrac{1}{3}) kg, while the average weight of three boys $B, D$ and $E$ is 53 kg. What is the average weight of $A, B, C, D$ and $E$?

A.

52.4 kg

B.

53.2 kg

C.

53.8 kg

D.

Data inadequate

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Moderate Averages Question - 10

Q10.

The average salary of all the workers in a workshop is Rs.8000. The average salary of 7 technicians is Rs.12000 and the average salary of the rest is Rs.6000. The total number of workers in the workshop is:

A.

20

B.

21

C.

22

D.

23

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