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
The pair of linear equations x+2y - 5 = 0, 7x + 3y - 13 = 0 has a unique solution. Then the values of x and y are
x = 1, y = 2
x = 2, y = 1
x = 3, y = -1
x = 1, y = 3
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
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
If the pair of linear equations 2x + 3 y -5 = 0, 4x + ky - 10 = 0 has an infinite number of solutions, then the value of k is
k = 3/2
k ≠ 3/2
k ≠ 6
k = 6
The pair of linear equations 3x + 4y = k, 9x + 12y = 6 has infinitely many solutions if the value of k is
k = 2
k ≠ 3
The solution of the equations x - y = 8 and x + y = 2 are
x = 5, y = -3
x = 3, y = 5
x = -5, x = -3
x = 5 and y = 3
If the line y = p x - 2 passes through the point (3 , 2), then find the value of p.
3/4
4/3
3
4
The pair of lines5 x - 4 y + 8 = 07 x + 6 y - 9 = 0 represents
parallel lines
coincident lines
intersecting lines
perpendicular lines
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 = 4
x = 9
