The average of 6 numbers is 20. If one number is 10, find the average of the rest. MCQ with Answer and Explanation

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The average of 6 numbers is 20. If one number is 10, find the average of the rest.

A. 21

B. 20.5

C. 22

D. 21.5

Answer: Option C

Solution (By JKSSB Mock Tests)

Sum=6×20=120. Rest sum=120-10=110. Avg=110/5=22.

This question belongs to: Maths Average

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Practice More Average Questions

Question #1

The average of numbers from 11 to 30 is

A. 20.5

B. 21

C. 19.5

D. 20

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Correct Answer: Option A

Explanation:
(11+30)/2=20.5.

This question belongs to: Maths Average

Question #2

The average of 870,1160,1450 is

A. 1155

B. 1160

C. 1150

D. 1170

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Correct Answer: Option B

Explanation:
3480/3=1160.

This question belongs to: Maths Average

Question #3

Average of 12 numbers 520. If average of 8 is 515, average of remaining 4?

A. 530

B. 525

C. 532

D. 528

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Correct Answer: Option A

Explanation:
Sum12=6240. Sum8=4120. Remaining=2120. Average=530.

This question belongs to: Maths Average

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