If tan(A/2) = x, then the value of x is

If the amount received at the end of 2nd and 3rd year at Compound Interest on a certain Principal is Rs 28090, and Rs 29775.4 respectively, what is the rate of interest?

If cot ­-4π/3 = x, then the value of x is

A man travels 800 km in partly by rail and partly by steamer. He spends 7 hours more time on steamer. If the velocity of the steamer is 20 km/hr and the velocity of rail is 55 km/hr, how much distance does he cover by steamer?

The total surface area of a hemisphere is 41.58 sq cm, find its radius.

A circle is inscribed in a square. If the length of the diagonal of the square is 14√2 cm, what is the area of the circle?

Find the sum of interior angles of a decagon?

In the first 43 overs of a cricket match, the run rate was 5 runs/over. Calculate the required run rate in the remaining 7 overs to reach the target of 285 runs?