Average of 9 numbers is 28. If average of first 5 is 25, average of last 5 is 31, 5th number? MCQ with Answer and Explanation

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Average of 9 numbers is 28. If average of first 5 is 25, average of last 5 is 31, 5th number?

A. 28

B. 29

C. 26

D. 27

Answer: Option A

Solution (By JKExamLibrary)

Sum9=252. Sum1-5=125. Sum5-9=155. 5th=125+155-252=28.

This question belongs to: Maths Average

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Correct Answer: Option D

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Question #2 Report Error

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A. 260

B. 250

C. 270

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