Romila paid 9 for 2 pencils and 3 erasers; Sonali paid 18 for 4 pencils and 6 erasers. Their lines are:
ACoincident
BParallel
CIntersecting
DSlanting
Answer & Solution
Correct answer: A. Coincident
1. Halving the second equation gives the first.
2. The two equations are equivalent.
3. So the lines coincide.
_Source: NCERT Class 10 Mathematics, Chapter 3, Pair of Linear Equations in Two Variables._
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