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Applied Mathematics · 2023 · 1 mark
CBSE 2023 · Central · Set 4 · Q4
If [x + y, x +2; 2 x - y, 16] = [8, 5; 1, 3 y +1], then the values of x and y are:
If $\displaystyle \left[\begin{array}{cc}\mathrm{x}+\mathrm{y} & \mathrm{x}+2 \\ 2 \mathrm{x}-\mathrm{y} & 16\end{array}\right]=\left[\begin{array}{cc}8 & 5 \\ 1 & 3 \mathrm{y}+1\end{array}\right]$, then the values of x and y are:
Official answer
(A)
$\displaystyle \mathrm{x}=3, \mathrm{y}=5$
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CBSE Class 12 Applied Mathematics past-paper question from the 2023 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.