Quantitative Aptitude - Arithmetic Ability Questions

A car can cover 350 km in 4 hrs. If its speed is decreased by 12.5 kmph. How much time does the car take to cover a distance of 450 kms.

A car covers the first 30 km at a speed of 60 kmph and the next 20 km at 80 kmph. Find the average speed.

There is 40% increase in an amount in 10 years at simple interest. What will be the compound interest of Rs 25000 after 2 years at the same rate?

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

In ΔXYZ measure of angle Y is 90 deg. If cot X = 5/12, and XY = 2.5 cm, then what is the length (in cm) of side XZ?

56% of 250 is

Find the Greatest Common Factor of 280 and 144.

If a+bab=21 ,  then the value of (a-b) is