Average of 8 numbers 22. If 4 numbers average 20, other 4 average? MCQ with Answer and Explanation

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Average of 8 numbers 22. If 4 numbers average 20, other 4 average?

A. 23

B. 24

C. 22

D. 26

Answer: Option B

Solution (By JKSSB Mock Tests)

Sum8=176. Sum4=80. Other=96. Average=24.

This question belongs to: Maths Average

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Question #1

Average of 15 numbers 45. If one number 60 is excluded, new average?

A. 43

B. 44

C. 45

D. 46

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Correct Answer: Option B

Explanation:
Sum15=675. Remaining=615/14≈43.93 approx 44.

This question belongs to: Maths Average

Question #2

The average of 18,36,54 is

A. 40

B. 36

C. 32

D. 30

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Correct Answer: Option B

Explanation:
108/3=36.

This question belongs to: Maths Average

Question #3

Average of 12 numbers 2670. If average of 8 is 2665, average of remaining 4?

A. 2682

B. 2680

C. 2678

D. 2675

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Correct Answer: Option B

Explanation:
Sum12=32040. Sum8=21320. Remaining=10720. Average=2680.

This question belongs to: Maths Average

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