The system of linear equations px+qy = r and p_1x + q_1y = r_1 has a unique solution, if :

CBSE Class 10 Maths PYQ · Linear Equations · Types of solutions · 1 Mark · March 2026 · Basic

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811 Mark · March 2026 · Basic
The system of linear equations $px+qy = r$ and $p_1x + q_1y = r_1$ has a unique
solution, if :
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Ans. (c) $pq_1 \neq qp_1$
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