ir 1. The number of solutions of the pair of linear equations x + 2 y – 8 = 0 and 2 x + 4 y = 16 is : (a) 0 (b) 1 (c) infinitely many (d) none of these 2. The graphical representation of the pair of equations x + 2 y – 4 = 0 and 2 x + 4 y – 12 = 0 represents (a) intersecting lines (b) parallel lines (c) coincident lines (d) all of these 3. If a pair of linear equations is consistent, then the lines will be : (a) parallel (b) always coincident (c) intersecting or coincident (d) always intersecting 4. The condition so that the pair of linear equations kx + 3 y + 1 = 0, 2 x + y + 3 = 0 has exactly one solution is : (a) k = 6 (b) k ≠ 6 (c) k = 3 (d) k ≠ 3 5. The lines representing the linear equations 2 x – y = 3 and 4 x – y = 5 : (a) intersect at a point (b) are parallel (c) are coincident (d) intersect at exactly two points 6. The pair of linear equations 2 x + 5 y = – 11 and 5 x + 15 y
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