Average of 12 numbers 820. If average of 8 is 815, average of remaining 4? MCQ with Answer and Explanation

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Average of 12 numbers 820. If average of 8 is 815, average of remaining 4?

A. 832

B. 825

C. 830

D. 828

Answer: Option C

Solution (By JKExamLibrary)

Sum12=9840. Sum8=6520. Remaining=3320. Average=830.

This question belongs to: Maths Average

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Question #1 Report Error

Average of 8 numbers 2700. If average of 5 is 2695, average of remaining 3?

A. 2705

B. 2708.33

C. 2710

D. 2707

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Correct Answer: Option B

Explanation:
Sum8=21600. Sum5=13475. Remaining=8125. Average≈2708.33.

This question belongs to: Maths Average

Question #2 Report Error

Average of 825,1100,1375 is

A. 1090

B. 1095

C. 1110

D. 1100

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Correct Answer: Option D

Explanation:
3300/3=1100.

This question belongs to: Maths Average

Question #3 Report Error

Average of 9 numbers 740. If average of 6 is 735, average of remaining 3?

A. 748

B. 755

C. 750

D. 745

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Correct Answer: Option C

Explanation:
Sum9=6660. Sum6=4410. Remaining=2250. Average=750.

This question belongs to: Maths Average

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