Mathematics · 2025
JEE Main · 2 April 2025, Shift 2 · Q8
If the mean and the variance of 6,4, a, 8, b, 12,10,13 are 9 and 9.25 respectively, then a + b + ab is equal to:
If the mean and the variance of $\displaystyle 6,4, a, 8, b, 12,10,13$ are $\displaystyle 9$ and $\displaystyle 9.25$ respectively, then $\displaystyle \mathrm{a}+\mathrm{b}+\mathrm{ab}$ is equal to :
Official answer
From NTA’s final answer key for this paper.
(2)
$\displaystyle 103$
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JEE Main 2025 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.