The mean of 10 observations is 15. If one observation 12 is replaced by 22, what will be the new mean?

CA Foundation · Quantitative Aptitude · PYQS · May 2026
The mean of 10 observations is 15. If one observation 12 is replaced by 22, what will be the new mean?
(A) A. 16
(B) B. 14
(C) C. 17
(D) D. 18

Suggested Answer and Working Notes:

Correct Answer: Option (A)

A. 16

Topics: Part-C: Statistics

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