There are 2 to 40 minutes on any watch. So how many degree angles will be made between the two needles?

The compound interest earned in two years at 8 % per annum is 3993.6 . What is the sum invested? 

A took 15 sec. to cross a rectangular field diagonally walking at the rate of speed 52m / min and B took the same time to cross the same field along its sides walking at the rated speed 68 m / min. The area of the field is: 

The smallest positive integer n for which 864 x n is a perfect cube, is: 

Find the value of $$\left({sin 35°\over cos55°} \right)^2+\left({cos55°\over sin 35°} \right)^2 \ -2 sin^{3}30°$$

In an army selection process, the ratio of selected to unselected candidates was 3 : 1. If 80 less had applied and 40 less selected, the ratio of selected to unselected candidates would have been 4 : 1. How many candidates had applied for the process? 

Direction : What value should come in the place of question mark (?) in the following questions?

$$ \sqrt{576}+\sqrt{841} =(?) $$

The area of a circle, is 3850 sq.m. What will be its circumference?