Quantitative Aptitude - Arithmetic Ability Questions

Mummy can bake 75 cakes in 15 hours, Mummy and Sister together can bake 120 cakes in 20 hours. How many cakes Sister can bake in 30 hours?

In ΔABC , DE || AC. Where D and E are two points lying on AB and BC respectively. If AB = 5 cm and AD = 3 cm, then BE : EC is

Find the area (in sq units) enclosed by y = 0, x+6=0 and 2x-3y=6.

If 2x + 3y = 0 and 3x ­- 4y = 34, then x ­- y = ______

What is the value of sec 330°?

In the following question, select the odd letter from the given alternatives.

x, y be two acute angles, x + y < 90° and sin(2x - 20°) = cos(2y + 20°), the value of tan(x + y) is

In what ratio tea at Rs 240/kg should be mixed with tea at Rs 280/kg so that on selling the mixture at Rs 324/kg there is a profit of 20%?