Quantitative Aptitude - Arithmetic Ability Questions

The solution set of 4x -­ 3y = 10 and 3x + y = 14 is

Which of the following quadratic equations has real roots?

Find the value of

199992 x 200008 = ?

The mean of marks secured by 45 students in division A of class X is 56, 40 students of division B is 52 and that of 40 students of division C is 50. Find the mean of marks of the students of three divisions of Class X.

Given: x -­ 5 ≤ 2x -­ 3 and 2x - ­1/2 ≥ 5x + 2; then x can take which of the following values?

A vendor buys some bananas at the rate of 2 for Re 1 and sells at the rate of 10 for Rs 7. What will be the result?

The points A(x,2), B(­2,1) and C(6,­3) are collinear. Find x?

If cot(A/2) = x, then the value of x is