If average of 10 numbers is 20 and average of 6 is 18, average of remaining 4? MCQ with Answer and Explanation

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

A. 25

B. 22

C. 24

D. 23

Answer: Option D

Solution (By JKExamLibrary)

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

This question belongs to: Maths Average

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Question #1

Average of 8 numbers 450. If average of 5 is 445, average of remaining 3?

A. 455

B. 457

C. 460

D. 458.33

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Correct Answer: Option D

Explanation:
Sum8=3600. Sum5=2225. Remaining=1375. Average≈458.33.

This question belongs to: Maths Average

Question #2

Average of 9 numbers 1690. If average of 6 is 1685, average of remaining 3?

A. 1698

B. 1705

C. 1700

D. 1695

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Correct Answer: Option C

Explanation:
Sum9=15210. Sum6=10110. Remaining=5100. Average=1700.

This question belongs to: Maths Average

Question #3

Average of 8 numbers 2000. If average of 5 is 1995, average of remaining 3?

A. 2008.33

B. 2007

C. 2005

D. 2010

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Correct Answer: Option A

Explanation:
Sum8=16000. Sum5=9975. Remaining=6025. Average≈2008.33.

This question belongs to: Maths Average

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