Quantitative Aptitude - Arithmetic Ability Questions

A taxi going at 90 km/hr takes 35 minutes to travel a certain distance. By how much should it increase its speed (in km/hr) to travel the same distance in 21 minutes?

How long will Ramesh take to run round a square park of edge 50 meters, if he runs at the rate of 18 km/hr?

10 identical solid spherical balls of radius 3 cm are melted to form a single sphere. In this process 20% of solid is wasted. What is the radius (in cm) of the bigger sphere?

What is the area (in sq cm) of a rhombus if the lengths of its diagonals are 25 cm and 20 cm?

Find the maximum area of a rectangular field which is surrounded by a rope of 100 meters?

If cot π/3c -­ tan π/4c = x, then the value of x is

If 2x - 3 = 3x - 5, then the numerical value of (x - 3)2 is

If the compound interest for the 3rd and 4th year on a certain principal is Rs 125 and Rs 135 respectively, what is the rate of interest (in %)?