Mathematics · 2023
JEE Main · 12 April 2023, Shift 1 · Q30
A fair n(n>1) faces die is rolled repeatedly until a number less than n appears. If the mean of the number of tosses required is n/9, then n is equal…
A fair $\displaystyle n(n>1)$ faces die is rolled repeatedly until a number less than $\displaystyle n$ appears. If the mean of the number of tosses required is $\displaystyle \frac{n}{9}$, then $\displaystyle n$ is equal to $\displaystyle \_\_\_\_$.
Official answer
From NTA’s final answer key for this paper.
10
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JEE Main 2023 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.