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A bag contains $5$ red balls and $n$ green balls. If the probability of drawing a green ball is three times that of a red ball, then the value of $n$ is :
- (a)$18$
- (b)$15$
- (c)$10$
- (d)$20$
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(b) $15$
A bag contains 5 red balls and n green balls. If the probability of drawing a green ball is three times that of a red…
CBSE Class 10 Maths PYQ · Probability · Reverse question of probability · 1 Mark · March 2023 · Standard
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