Mathematics · 2024
JEE Main · 1 February 2024, Shift 1 · Q17
A bag contains 8 balls, whose colours are either white or black. 4 balls are drawn at random without replacement and it was found that 2 balls are…
A bag contains $\displaystyle 8$ balls, whose colours are either white or black. $\displaystyle 4$ balls are drawn at random without replacement and it was found that $\displaystyle 2$ balls are white and other $\displaystyle 2$ balls are black. The probability that the bag contains equal number of white and black balls is :
Official answer
From NTA’s final answer key for this paper.
(4)
$\displaystyle \frac{2}{7}$
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JEE Main 2024 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.