If arithmetic mean between roots of a quadratic equation is 8 and the geometric mean between them is 5, the equation is.

CA Foundation · Quantitative Aptitude · MTP · January 2026
If arithmetic mean between roots of a quadratic equation is 8 and the geometric mean between them is 5, the equation is.
(A) A. x 2 - 16x - 25 = 0
(B) B. x 2 - 16x + 25 = 0
(C) C. x 2 - 16x - 5 = 0
(D) D. none of these

Suggested Answer and Working Notes:

Correct Answer: Option (B)

B. x 2 - 16x + 25 = 0

Topics: Part-A: Business Mathematics, Part-C: Statistics

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