Pair of Linear ...

If a pair of linear equations has infinitely many solutions, then the lines representing them will be

If the lines given by 3 x + 2 ky = 2 and 2x + 5y + 1 = 0 are parallel, then value of k is

If am ≠ bl, then the system of equations, ax + by = c, lx + my = n

If x = a, y = b is the solution of the equations x – y = 2 and x + y = 4, then the values of a and b are, respectively

The father’s age is six times his son’s age. Four years hence, the age of the father will be four times his son. The present ages (in years) of the son and the father are, respectively.

The pair of equations 5 x – 15y = 8 and 3x – 9 y = 24/5 has

The sum of the digits of a two-digit number is 9. If 27 is added to it, the digit of number get reversed. The number is

The value of k for which the system of equations 2x + ky x + 3y – 4 = 0 are inconsistent is

The pair of equations x = a and y = b graphically represents lines which are

The pair of equations y = 0 and y = –7 has