Average of 12 numbers 2320. If average of 8 is 2315, average of remaining 4? MCQ with Answer and Explanation

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Average of 12 numbers 2320. If average of 8 is 2315, average of remaining 4?

A. 2328

B. 2332

C. 2325

D. 2330

Answer: Option D

Solution (By JKSSB Mock Tests)

Sum12=27840. Sum8=18520. Remaining=9320. Average=2330.

This question belongs to: Maths Average

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Question #1

Average of 10 numbers 1880. If average of 6 is 1875, average of remaining 4?

A. 1885

B. 1890

C. 1887.5

D. 1886

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Correct Answer: Option C

Explanation:
Sum10=18800. Sum6=11250. Remaining=7550. Average=1887.5.

This question belongs to: Maths Average

Question #2

Average of 12 numbers 55. If average of 8 is 50, average of remaining 4?

A. 60

B. 65

C. 70

D. 62.5

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Correct Answer: Option B

Explanation:
Sum12=660. Sum8=400. Remaining=260. Average=65.

This question belongs to: Maths Average

Question #3

The average of 660,880,1100 is

A. 875

B. 870

C. 890

D. 880

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Correct Answer: Option D

Explanation:
2640/3=880.

This question belongs to: Maths Average

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