The average of 20 numbers is 45. Later it was found that 52 was wrongly taken as 25. What is the correct average? MCQ with Answer and Explanation

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The average of 20 numbers is 45. Later it was found that 52 was wrongly taken as 25. What is the correct average?

A. 45.35

B. 47

C. 46.35

D. 46

Answer: Option C

Solution (By JKExamLibrary)

Error = 52-25=27 too less. Correct sum = old sum +27. Old sum=20×45=900. New sum=927. Average=927/20=46.35.

This question belongs to: Maths Average

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B. 68

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Question #2 Report Error

Average of 8 numbers 1050. If average of 5 is 1045, average of remaining 3?

A. 1055

B. 1060

C. 1058.33

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Correct Answer: Option C

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Average of 12 numbers 2270. If average of 8 is 2265, average of remaining 4?

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