Mathematics · 2020
JEE Main · 9 January 2020, Shift 2 · Q68
If 10 different balls are to be placed in 4 distinct boxes at random, then the probability that two of these boxes contain exactly 2 and 3 balls is:
If $\displaystyle 10$ different balls are to be placed in $\displaystyle 4$ distinct boxes at random, then the probability that two of these boxes contain exactly $\displaystyle 2$ and $\displaystyle 3$ balls is :
Official answer
(1)
$\displaystyle \frac{945}{2^{10}}$
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JEE Main 2020 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.