Mathematics · 2023
JEE Main · 8 April 2023, Shift 1 · Q30
Let the mean and variance of 8 numbers x, y, 10,12,6,12,4,8 be 9 and 9.25 respectively. If x>y, then 3 x-2 y is equal to ____.
Let the mean and variance of $\displaystyle 8$ numbers $\displaystyle x, y, 10,12,6,12,4,8$ be $\displaystyle 9$ and $\displaystyle 9.25$ respectively. If $\displaystyle x>y$, then $\displaystyle 3 x-2 y$ is equal to $\displaystyle \_\_\_\_$.
Official answer
From NTA’s final answer key for this paper.
25
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JEE Main 2023 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.