Average of 10 numbers 2730. If average of 6 is 2725, average of remaining 4? MCQ with Answer and Explanation

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Average of 10 numbers 2730. If average of 6 is 2725, average of remaining 4?

A. 2735

B. 2740

C. 2737.5

D. 2736

Answer: Option C

Solution (By JKSSB Mock Tests)

Sum10=27300. Sum6=16350. Remaining=10950. Average=2737.5.

This question belongs to: Maths Average

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Question #1

The average of 12 numbers is 18. If each number is increased by 5, what is the new average?

A. 13

B. 23

C. 28

D. 18

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Correct Answer: Option B

Explanation:
New average =18+5=23.

This question belongs to: Maths Average

Question #2

The average of 12,18,24,30,36 is

A. 24

B. 25

C. 26

D. 23

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Correct Answer: Option A

Explanation:
Sum=120. Average=24.

This question belongs to: Maths Average

Question #3

The average of 12 numbers is 40. Later average becomes 42 when two numbers are changed. The difference in sum?

A. 20

B. 30

C. 24

D. 28

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Correct Answer: Option C

Explanation:
Increase in average 2, for 12 =24 increase in sum.

This question belongs to: Maths Average

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