Average of 10 numbers 2530. If average of 6 is 2525, average of remaining 4? MCQ with Answer and Explanation

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Average of 10 numbers 2530. If average of 6 is 2525, average of remaining 4?

A. 2537.5

B. 2535

C. 2540

D. 2536

Answer: Option A

Solution (By JKExamLibrary)

Sum10=25300. Sum6=15150. Remaining=10150. Average=2537.5.

This question belongs to: Maths Average

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Question #1 Report Error

The average of 4 numbers is 24. If each number is multiplied by 4, what is the new average?

A. 72

B. 24

C. 48

D. 96

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Correct Answer: Option D

Explanation:
New average =24×4=96.

This question belongs to: Maths Average

Question #2 Report Error

Average of 12 numbers 2470. If average of 8 is 2465, average of remaining 4?

A. 2478

B. 2480

C. 2482

D. 2475

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Correct Answer: Option B

Explanation:
Sum12=29640. Sum8=19720. Remaining=9920. Average=2480.

This question belongs to: Maths Average

Question #3 Report Error

The average of 6 numbers is 28. If two numbers are 22 and 30, find the average of the remaining four.

A. 28.5

B. 29.5

C. 29

D. 28

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Correct Answer: Option C

Explanation:
Sum=6×28=168. Sum of two=22+30=52. Sum of four=116. Avg=116/4=29.

This question belongs to: Maths Average

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