Average of 10 numbers 380. If average of 6 is 375, average of remaining 4? MCQ with Answer and Explanation

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Average of 10 numbers 380. If average of 6 is 375, average of remaining 4?

A. 390

B. 385

C. 387.5

D. 386

Answer: Option C

Solution (By JKExamLibrary)

Sum10=3800. Sum6=2250. Remaining=1550. Average=387.5.

This question belongs to: Maths Average

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Question #1

The average of 15,25,35,45,55 is

A. 40

B. 30

C. 35

D. 36

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Correct Answer: Option C

Explanation:
Sum=175. Average=35.

This question belongs to: Maths Average

Question #2

Average of 15 numbers 2110. If average of 9 is 2105, average of remaining 6?

A. 2117.5

B. 2118

C. 2120

D. 2115

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Correct Answer: Option A

Explanation:
Sum15=31650. Sum9=18945. Remaining=12705. Average=2117.5.

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Question #3

The average of 540,720,900 is

A. 730

B. 710

C. 720

D. 715

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Correct Answer: Option C

Explanation:
2160/3=720.

This question belongs to: Maths Average

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