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A pair of linear equations whose lines coincide has:

AInfinitely many solutions
BExactly one solution
CNo solution at all
DExactly two solutions
Answer & Solution
Correct answer: A. Infinitely many solutions
1. Every point on the line satisfies both. 2. One equation is a multiple of the other. 3. So there are infinitely many solutions. _Source: syllabus Mathematics, Chapter 3, Pair of Linear Equations in Two Variables._
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