CUET Preparation Today
The values of x and y in $\left[\begin{array}{l}2 x+y \\ x+2 y\end{array}\right]=\left[\begin{array}{l}4 \\ 5\end{array}\right]$ are: |
4, 5 5, 4 1, 2 2, 1 |
1, 2 |
The correct answer is Option (3) → 1, 2 from matrix comparison $2x+y=4$ ...(1) $x+2y=5$ ...(2) 2 × eq. (2) - eq. (1) $2x+4y-2x-y=10-6$ $3y=6⇒y=2$ from (2) $x+4=5⇒x=1$ $x,y=1,2$ |
