Average of 15 numbers 1660. If average of 9 is 1655, average of remaining 6? MCQ with Answer and Explanation

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Average of 15 numbers 1660. If average of 9 is 1655, average of remaining 6?

A. 1667.5

B. 1668

C. 1670

D. 1665

Answer: Option A

Solution (By JKSSB Mock Tests)

Sum15=24900. Sum9=14895. Remaining=10005. Average=1667.5.

This question belongs to: Maths Average

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Question #1

Average of 1575,2100,2625 is

A. 2090

B. 2110

C. 2095

D. 2100

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Correct Answer: Option D

Explanation:
6300/3=2100.

This question belongs to: Maths Average

Question #2

Average of 12 numbers 870. If average of 8 is 865, average of remaining 4?

A. 875

B. 880

C. 878

D. 882

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Correct Answer: Option B

Explanation:
Sum12=10440. Sum8=6920. Remaining=3520. Average=880.

This question belongs to: Maths Average

Question #3

Average of 30 numbers 42. If average of 20 is 40, average of remaining 10?

A. 48

B. 44

C. 45

D. 46

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Correct Answer: Option D

Explanation:
Total=1260. Sum20=800. Remaining=460. Average=46.

This question belongs to: Maths Average

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