Average of 12 numbers 2470. If average of 8 is 2465, average of remaining 4? MCQ with Answer and Explanation

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

A. 2478

B. 2482

C. 2475

D. 2480

Answer: Option D

Solution (By JKExamLibrary)

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

This question belongs to: Maths Average

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Average of 12 numbers 270. If average of 8 is 265, average of remaining 4?

A. 282

B. 275

C. 278

D. 280

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Correct Answer: Option D

Explanation:
Sum12=3240. Sum8=2120. Remaining=1120. Average=280.

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Question #2 Report Error

Find the average of the first 6 multiples of 3.

A. 9.5

B. 10

C. 10.5

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Question #3 Report Error

Average of 30 students 60 marks. If 10 students 70 marks, average of remaining 20?

A. 55

B. 58

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