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?

5 litres of honey contains 80% sugar. 3 litres of water is added to this honey. What is the percentage of sugar in the new mixture?

ΔPQR is right angled at Q. QS is the altitude. PQ is 2√13 cm and PS is 8 cm. What is the length of SR?

2cos[(C+D)/2]sin[(C-D)/2] is equal to

∆ABC is right angled at B. If m∠A = 30°, then find the value of (sinC + 1/3).

Find the perimeter (in cm) of a semicircle of radius 28 cm.

The length of the diagonal and the breadth of a rectangle are 17 cm and 8 cm respectively. Find its perimeter (in cm).

The area of a rectangle is 120 sq cm and its perimeter 140 cm. What is the length of its diagonal?