Average of 8 numbers 28. If average of 5 is 25, average of remaining 3? MCQ with Answer and Explanation

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Average of 8 numbers 28. If average of 5 is 25, average of remaining 3?

A. 33.33

B. 30

C. 35

D. 32

Answer: Option A

Solution (By JKExamLibrary)

Sum8=224. Sum5=125. Remaining=99. Average=33.

This question belongs to: Maths Average

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Question #1 Report Error

Average of first 20 multiples of 5 is

A. 50

B. 55

C. 60

D. 52.5

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Correct Answer: Option D

Explanation:
5 to 100. Average 5*(1+20)/2 =5*10.5=52.5.

This question belongs to: Maths Average

Question #2 Report Error

Average of 15 numbers 1110. If average of 9 is 1105, average of remaining 6?

A. 1118

B. 1115

C. 1117.5

D. 1120

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Correct Answer: Option C

Explanation:
Sum15=16650. Sum9=9945. Remaining=6705. Average=1117.5.

This question belongs to: Maths Average

Question #3 Report Error

Average of 12 numbers 2470. If average of 8 is 2465, average of remaining 4?

A. 2482

B. 2475

C. 2478

D. 2480

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Correct Answer: Option D

Explanation:
Sum12=29640. Sum8=19720. Remaining=9920. Average=2480.

This question belongs to: Maths Average

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