Average of 8 numbers 650. If average of 5 is 645, average of remaining 3? MCQ with Answer and Explanation

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Average of 8 numbers 650. If average of 5 is 645, average of remaining 3?

A. 657

B. 655

C. 658.33

D. 660

Answer: Option C

Solution (By JKExamLibrary)

Sum8=5200. Sum5=3225. Remaining=1975. Average≈658.33.

This question belongs to: Maths Average

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Question #1 Report Error

Average of 10,15,20,25,30 is

A. 20

B. 25

C. 18

D. 22

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Correct Answer: Option A

Explanation:
100/5=20.

This question belongs to: Maths Average

Question #2 Report Error

Average of 15 numbers 910. If average of 9 is 905, average of remaining 6?

A. 915

B. 920

C. 918

D. 917.5

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Correct Answer: Option D

Explanation:
Sum15=13650. Sum9=8145. Remaining=5505. Average=917.5.

This question belongs to: Maths Average

Question #3 Report Error

The average of 27,36,45 is

A. 30

B. 35

C. 40

D. 36

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Correct Answer: Option D

Explanation:
108/3=36.

This question belongs to: Maths Average

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