If average of 16 numbers is 42 and average of 12 is 40, average of remaining 4? MCQ with Answer and Explanation

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If average of 16 numbers is 42 and average of 12 is 40, average of remaining 4?

A. 45

B. 46

C. 50

D. 48

Answer: Option D

Solution (By JKSSB Mock Tests)

Sum16=672. Sum12=480. Remaining=192. Average=48.

This question belongs to: Maths Average

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Question #1

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The average of 10 numbers is 14. If each number is decreased by 3, what is the new average?

A. 14

B. 8

C. 11

D. 17

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Correct Answer: Option C

Explanation:
New average =14-3=11.

This question belongs to: Maths Average

Question #2

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The average of 11 numbers is 44. What is the sum of the numbers?

A. 464

B. 440

C. 484

D. 504

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Correct Answer: Option C

Explanation:
Sum =44×11=484.

This question belongs to: Maths Average

Question #3

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Average of 12 numbers 1070. If average of 8 is 1065, average of remaining 4?

A. 1080

B. 1082

C. 1075

D. 1078

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Correct Answer: Option A

Explanation:
Sum12=12840. Sum8=8520. Remaining=4320. Average=1080.

This question belongs to: Maths Average

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