If Arithmetic Mean and coefficient of variation of x are 5 and 20 respectively. What is the variance of (15-2x)?

CA Foundation · Quantitative Aptitude · RTP · September 2025
If Arithmetic Mean and coefficient of variation of x are 5 and 20 respectively. What is the variance of (15-2x)?
(A) A. 16
(B) B. 4
(C) C. 64
(D) D. 32

Suggested Answer and Working Notes:

Correct Answer: Option (B)

B. 4

Topics: Part-C: Statistics

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