Mathematics · 2017
JEE Main · 8 April 2017, Shift 1 · Q86
Three persons P, Q and R independently try to hit a target. If the probabilities of their hitting the target are 3/4, 1/2 and 5/8 respectively, then…
Three persons P, Q and R independently try to hit a target. If the probabilities of their hitting the target are $\displaystyle \frac{3}{4}, \frac{1}{2}$ and $\displaystyle \frac{5}{8}$ respectively, then the probability that the target is hit by P or Q but not by R is :
Official answer
(1)
$\displaystyle \frac{21}{64}$
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JEE Main 2017 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.