Quantitative Aptitude - Arithmetic Ability Questions

The third proportional of two numbers 12 and 48 is

Let ΔABC and ΔABD be on the same base AB and between the same parallels AB and CD. Then the relation between areas of triangles ABC and ABD will be

Simplify 437bxaz / 23ab.

If 2x - 5y = 5 and 2x - y = 9, then x - y is ______.

The perimeter and the breadth of a rectangle are 60 cm and 14 cm respectively. Find its area (in cm²)

The diagonal of a cube is 192 cm. Its volume in cm3 will be 

20 kg of a mixture of wheat and husk contains 5% husk. How many kg more of husk must be added to make the husk content 20% in the new mixture?

Rehman goes on a trip on his motor-cycle and rides for 661 kms. If he rides for 8 hours at a speed of 31 km/hr, find at what speed he travels for the remaining 7 hours of the journey?