Average of 10 numbers 2630. If average of 6 is 2625, average of remaining 4? MCQ with Answer and Explanation

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Average of 10 numbers 2630. If average of 6 is 2625, average of remaining 4?

A. 2635

B. 2637.5

C. 2636

D. 2640

Answer: Option B

Solution (By JKSSB Mock Tests)

Sum10=26300. Sum6=15750. Remaining=10550. Average=2637.5.

This question belongs to: Maths Average

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Question #1

If average of 10 numbers is 20 and average of 6 is 18, average of remaining 4?

A. 23

B. 22

C. 25

D. 24

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Correct Answer: Option A

Explanation:
Sum10=200. Sum6=108. Remaining=92. Average=23.

This question belongs to: Maths Average

Question #2

Average of 25 consecutive numbers is 50. What is the smallest?

A. 40

B. 38

C. 37

D. 39

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Correct Answer: Option B

Explanation:
Middle 13th =50. Smallest=50 -12=38.

This question belongs to: Maths Average

Question #3

What is the average of the first 9 odd numbers?

A. 10

B. 9

C. 8.5

D. 9.5

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Correct Answer: Option B

Explanation:
Sum of first n odd numbers = n^2 =9^2=81. Average=81/9=9.

This question belongs to: Maths Average

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