Question

If $p,q,r$ are $3$ real numbers satisfying the matrix equation, $[pqr]\left[\begin{array}{ccc}3& 4& 1\\ 3& 2& 3\\ 2& 0& 2\end{array}\right]=[301]$ then $2p+q-r$ equals :

• A. -3
• B. -1
• C. 4
• D. 2

Answer 1

Answer: (A)

Correct answer is (a) -3