What will be the minimum value of x for which the number {3(x + 63) + 640} is completely divisible by 17?

If z = x + iy is a complex number such that iz = 2 + 3i, then the value of x − y is

If x, y, z are positive integers such that x : y = 1 : 2 and y : z = 3 : 5, then which one of the following will be possible value of 5x − 3y + z?

For what value of x, the statement [(x/21) × (x/189)] = 1 is correct?

The value of which of the following will not change if a constant number is added to all the scores of a series?

If x + 1/x = 2, then the value of (2x² + 2)/(3x² + 4x + 3) will be: