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Mathematics · 2023 · 1 mark
CBSE 2023 · Region 4 · Set 2 · Q14
A bag contains $\displaystyle 5$ red balls and $\displaystyle n$ green balls. If the probability of drawing a green ball is three times that of a red ball, then the value of $\displaystyle n$ is :
Official answer
From CBSE’s own marking scheme for this paper.
(B)
$\displaystyle 15$
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CBSE Class 10 Mathematics past-paper question from the 2023board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.