Mathematics · 2025
JEE Main · 29 January 2025, Shift 2 · Q8
Bag 1 contains 4 white balls and 5 black balls, and Bag 2 contains n white balls and 3 black balls. One ball is drawn randomly from Bag 1 and…
Bag $\displaystyle 1$ contains $\displaystyle 4$ white balls and $\displaystyle 5$ black balls, and Bag $\displaystyle 2$ contains n white balls and $\displaystyle 3$ black balls. One ball is drawn randomly from Bag $\displaystyle 1$ and transferred to Bag 2. A ball is then drawn randomly from Bag 2. If the probability, that the ball drawn is white, is $\displaystyle 29$/$\displaystyle 45$, then n is equal to :
Official answer
From NTA’s final answer key for this paper.
(1)
$\displaystyle 6$
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JEE Main 2025 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.