Average of 15 numbers 860. If average of 9 is 855, average of remaining 6? MCQ with Answer and Explanation

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Average of 15 numbers 860. If average of 9 is 855, average of remaining 6?

A. 870

B. 867.5

C. 865

D. 868

Answer: Option B

Solution (By JKExamLibrary)

Sum15=12900. Sum9=7695. Remaining=5205. Average=867.5.

This question belongs to: Maths Average

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Question #1 Report Error

The average of 30 numbers is 25. If 5 numbers with average 30 are added, new average?

A. 27

B. 25

C. 25.71

D. 26

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Correct Answer: Option C

Explanation:
Total30=750. Added=150. Total900. Numbers35. Average≈25.71.

This question belongs to: Maths Average

Question #2 Report Error

Average of 10,20,30,40 is

A. 22.5

B. 25

C. 20

D. 30

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Correct Answer: Option B

Explanation:
100/4=25.

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Question #3 Report Error

The average of 1200,1600,2000 is

A. 1595

B. 1600

C. 1610

D. 1590

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Correct Answer: Option B

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