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Pair of Linear Equations in Two Variables
CBSE 2026 Board Exam Set 1 (Code 30/1/1)
CBSE_BOARD_PYQ_2026_30_1_1
Grade 10

Question:

[Section A]

The pair of linear equations $x + 2y + 5 = 0$ and $-3x - 6y + 1 = 0$ has:

(A) a unique solution
(B) exactly two solutions
(C) infinitely many solutions
(D) no solution

Step-by-Step Solution

Key Concept: $a_1/a_2 = b_1/b_2 <br>eq c_1/c_2 \Rightarrow -1/3 = -1/3 <br>eq 5/1$. Parallel lines.
Sol. (D) no solution. [1.0 Mark]

Correct Answer: (D) no solution
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