Quantitative Aptitude - Arithmetic Ability Questions

R is 80% more efficient than S. If S alone can make a book in 90 days, then R alone can make the book in how many days?

The length of one side and the diagonal of a rectangle are 8 cm and 17 cm respectively. Find its area (in cm2).

From the top of a platform 5 m high, the angle of elevation of a tower was 30 deg. If the tower was 45 m high, how far away from the tower was the platform positioned?

What are the components of X6 - X4 - X5 - X4 + X2 - 4?

Sin6A + Cos6A - 1 is equal to

Calculate the sum of squares from 1 to 9.

Find the sum of the measures all the interior angles of a polygon having 12 sides.

The base of a right prism is a trapezium whose the length of parallel sides are 25 cm and 11 cm and the perpendicular distance between the parallell sides in 16 cm. If the height of the prism is 10 cm, then the volume of the prism is