Quantitative Aptitude - Arithmetic Ability Questions

In a triangle ABC, ∠A = 70°, ∠B = 80° and D is the incentre of ΔABC. ∠ACB = 2x° and ∠BDC = y°. The values of x and y, respectively are

If the edge of a cube is increased by 2 cm, the volume will increase by 488 cub.cm. What then will be the length of each edge of the cube?

By what least number should 1200 be multiplied so that it becomes a perfect square?

If 60/75 is equivalent to 4/x, then the value of x is

Find the volume (in cm3) of a right circular cylinder of diameter 42 cm and height 14 cm.

P + Q = 2(P-Q). If Q = 10, what is the value of P?

1.004 - 0.4 is equal to

In a triangle, the length of the side opposite the angle which measures 45° is 16 cm, what is the length of the side opposite to the angle which measures 90°?