Average of 15 numbers 2660. If average of 9 is 2655, average of remaining 6? MCQ with Answer and Explanation

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Average of 15 numbers 2660. If average of 9 is 2655, average of remaining 6?

A. 2670

B. 2668

C. 2667.5

D. 2665

Answer: Option C

Solution (By JKSSB Mock Tests)

Sum15=39900. Sum9=23895. Remaining=16005. Average=2667.5.

This question belongs to: Maths Average

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Question #1

Average of 10 numbers 880. If average of 6 is 875, average of remaining 4?

A. 887.5

B. 886

C. 885

D. 890

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Correct Answer: Option A

Explanation:
Sum10=8800. Sum6=5250. Remaining=3550. Average=887.5.

This question belongs to: Maths Average

Question #2

Average of 9 numbers 2640. If average of 6 is 2635, average of remaining 3?

A. 2648

B. 2645

C. 2650

D. 2655

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Correct Answer: Option C

Explanation:
Sum9=23760. Sum6=15810. Remaining=7950. Average=2650.

This question belongs to: Maths Average

Question #3

Average of 4,8,12,16,20,24 is

A. 16

B. 14

C. 13

D. 15

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Correct Answer: Option B

Explanation:
Sum=84. Average=14.

This question belongs to: Maths Average

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