Average of 10 numbers 580. If average of 6 is 575, average of remaining 4? MCQ with Answer and Explanation

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Average of 10 numbers 580. If average of 6 is 575, average of remaining 4?

A. 587.5

B. 585

C. 590

D. 586

Answer: Option A

Solution (By JKExamLibrary)

Sum10=5800. Sum6=3450. Remaining=2350. Average=587.5.

This question belongs to: Maths Average

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Question #1 Report Error

Average of 40 numbers 28. If 10 numbers average 32, average of remaining 30?

A. 24

B. 25

C. 27

D. 26

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Correct Answer: Option D

Explanation:
Total=1120. 10=320. Remaining=800/30≈26.67 approx 26.

This question belongs to: Maths Average

Question #2 Report Error

Average of 55,110,165 is

A. 110

B. 105

C. 100

D. 120

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Correct Answer: Option A

Explanation:
330/3=110.

This question belongs to: Maths Average

Question #3 Report Error

The average of 8 numbers is 40. If one number is 20, find the average of the remaining 7.

A. 42

B. 43

C. 41.5

D. 42.86

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Correct Answer: Option D

Explanation:
Sum=8×40=320. Remaining sum=320-20=300. Avg=300/7=42.86.

This question belongs to: Maths Average

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