Quantitative Aptitude - Arithmetic Ability Questions

A bus travels 720 km in 20 hours. Calculate its average speed in meters/second.

If the angle of elevation of the top of a pillar from the ground level is raised from 30° to 60°, the length of the shadow of a pillar of height 503 will be decreased by

Mahesh buys a watch of Rs 300 and sells it. Mahesh gives two successive discount of 15% and 6% to the buyer. What will be the selling price (in Rs) ofthe watch?

What is the value of 513-144 - 81 - 64 ?

Determine the value of z in the equation: z = 20+20+20+20+...∞

A book is sold at three successive discounts of 20%, 20% and 10%. What is the net discount (in percentage)?

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

If 2x+29x = 4, then the value of 27x3+127x3