Class 10 Maths FA1admin2021-08-25T22:09:25+05:30Welcome to your class 10 Test Name Class 1. Graphically, the pair of equations 6x – 3y + 10 = 0 2x – y + 9 = 0 Represents two lines which are:Intersecting at exactly one point.Intersecting at exactly two points.CoincidentParallel2. The pair of equations x + 2y – 5 = 0 and −3x – 6y + 15 = 0 have:A unique solutionExactly two solutionsInfinitely many solutionsNo solution3. If a pair of linear equations is consistent, then the lines will be:ParallelAlways coincidentIntersecting or coincidentAlways intersectin4. The pair of equations y = 0 and y = –7 hasOne solutionTwo solutionsInfinitely many solutionsNo solution5. If the lines given by 3x + 2ky = 2 2x + 5y + 1 = 0 are parallel, then the value of k is5/42/515/43/26. The value of c for which the pair of equations cx – y = 2 and 6x – 2y = 3 will have infinitely many solutions is3– 3–12no value7. One equation of a pair of dependent linear equations is –5x + 7y – 2 = 0. The second equation can be10x + 14y + 4 = 0–10x – 14y + 4 = 0–10x + 14y + 4 = 010x – 14y = –48. Two numbers are in the ratio 5 : 6. If 8 is subtracted from each of the numbers, the ratio becomes 4 : 5. Then the numbers are:40, 4242, 4840, 4844, 509. The solution of the equations x – y = 2 and x + y = 4 is:3 and 55 and 33 and 1–1 and –310. For which values of a and b, will the following pair of linear equations have infinitely many solutions? x + 2y = 1 (a – b)x + (a + b)y = a + b – 2a = 2 and b = 1a = 2 and b = 2a = ̶ 3 and b = 1a = 3 and b = 111 out of 10
