Average of 12 numbers 1170. If average of 8 is 1165, average of remaining 4? MCQ with Answer and Explanation

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Average of 12 numbers 1170. If average of 8 is 1165, average of remaining 4?

A. 1178

B. 1182

C. 1175

D. 1180

Answer: Option D

Solution (By JKSSB Mock Tests)

Sum12=14040. Sum8=9320. Remaining=4720. Average=1180.

This question belongs to: Maths Average

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Question #1

The average of 48,64,80 is

A. 62

B. 60

C. 70

D. 64

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Correct Answer: Option D

Explanation:
192/3=64.

This question belongs to: Maths Average

Question #2

Average of 12 numbers 160. If average of 8 is 155, average of remaining 4?

A. 170

B. 165

C. 168

D. 172

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Correct Answer: Option A

Explanation:
Sum12=1920. Sum8=1240. Remaining=680. Average=170.

This question belongs to: Maths Average

Question #3

The average of 8 numbers is 44. If one number is 56, find the average of the remaining 7.

A. 42

B. 42.29

C. 43

D. 41.5

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Correct Answer: Option B

Explanation:
Sum=8×44=352. Remaining sum=352-56=296. Avg=296/7=42.29.

This question belongs to: Maths Average

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