The difference between two numbers is 26 and one number is three times the other number. Find them.
39, 13
30, 10
40, 14
30, 40
The larger of two supplementary angles exceeds the smaller by 18 degrees. Find them.
98°, 80°
99°, 81°
118°, 100°
100°, 80°
If the units and tens digit of a two digit number are y and x, then the number is
10 y + x
10 x + y
x + y
xy
Find the area of the triangle formed by the coordinate axes and the line x + y = 6.
6
12
18
36
If the pair of linear equations 2x - y -3 = 0, 2kx + 7y - 5 = 0 has a unique solution x = 1, y = -1, then the value of k is
3
4
-6
If the pair of linear equations 6x - 2y - 3 = 0, kx - y -2 = 0 has a unique solution, then the value of k is
k = 3
k ≠ 3
k = 4
k ≠ 4
The pair of linear equations 3 x + 7 y - k = 0, 12 x + 2 ky = 4 k + 1 has no solution if the value of k is
k = 7
k = 14
k = 21
k = 28
For what values of k will the pair of linear equations 2x - 3y = 7 and (k + 1) x + (1 - 2k) y = 5k - 4 have infinitely many solutions?
k = 5
k = 6
x = 9
The pair of equationsx = 0y = 0represents
parallel lines
coincident lines
perpendicular lines
non - intersecting lines
If the pair of linear equations 5x + ky = -7, x + 2y = 3 is inconsistent, then the value of k is
k = 2/5
k ≠2/5
k = 10
k ≠ 10
