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The pair of equations $ax + 2y = 9$ and $3x + by = 18$ represent parallel lines, where $a$, $b$ are integers, if :
- (a)$a = b$
- (b)$3a = 2b$
- (c)$2a = 3b$
- (d)$ab = 6$
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(d) $ab = 6$
The pair of equations ax + 2y = 9 and 3x + by = 18 represent parallel lines, where a , b are integers, if :
CBSE Class 10 Maths PYQ · Linear Equations · Types of solutions · 1 Mark · March 2023 · Standard
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