Average of 12 numbers 570. If average of 8 is 565, average of remaining 4? MCQ with Answer and Explanation

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Average of 12 numbers 570. If average of 8 is 565, average of remaining 4?

A. 580

B. 575

C. 578

D. 582

Answer: Option A

Solution (By JKExamLibrary)

Sum12=6840. Sum8=4520. Remaining=2320. Average=580.

This question belongs to: Maths Average

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Average of 465,620,775 is

A. 620

B. 630

C. 610

D. 615

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Correct Answer: Option A

Explanation:
1860/3=620.

This question belongs to: Maths Average

Question #2 Report Error

Average of 8 numbers 1200. If average of 5 is 1195, average of remaining 3?

A. 1210

B. 1205

C. 1207

D. 1208.33

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Correct Answer: Option D

Explanation:
Sum8=9600. Sum5=5975. Remaining=3625. Average≈1208.33.

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Question #3 Report Error

The average of 540,720,900 is

A. 720

B. 715

C. 730

D. 710

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Correct Answer: Option A

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