What is the compound interest on Rs. 48,000 for 2 years at 20% p.a., if interest is compounded annually?

A tank can be filled by A in 60 minutes and emptied by B in 75 minutes. The tank is half filled and Ravi wants to fill the tank but opens B mistakenly and realizes after half hour and closed tap B. He then opens A and tank is completely filled in _______ minutes.

The ratio of the heights of Ram and Rahim is 7 : 8. If Rahim's height is 66 inches, then the height of Ram is?

The top of two poles of height 24m and 36 m are connected by a wire. If the wire makes an angle of 60° with the horizontal, then the length of the wire is 

In ΔABC, AB = AC and ∠B = 40 °, find the value of ∠A.

If the curved surface area of a right circular cone is 10010 sq cm and its slant height is 91 cm, find its total surface area.

The figure below is an equilateral triangle with sides of length 6. What is the area of the triangle?

A spherical ball of lead 3 cm in diameter is melted and recast into three spherical balls The diameter of two of these are 1.5 cm and 2 cm respectively. The diameter of the third ball is