If in a class, 50% of the student study mathematics and science and 70% of the student study mathematics, then the probability of a student studying…

CA Foundation · Quantitative Aptitude · PYQS · January 2026
If in a class, 50% of the student study mathematics and science and 70% of the student study mathematics, then the probability of a student studying science given that he/she is already studying mathematics is
(A) A. 3 / 7
(B) B. 6 / 7
(C) C. 4 / 7
(D) D. 5 / 7

Suggested Answer and Working Notes:

Correct Answer: Option (D)

D. 5 / 7

Topics: Part-C: Statistics

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