Exams

The volume of a right circular cone, whose radius of the base is same as one-third of its altitude, and the volume of a sphere are equal. The ratio of the radius of the cone to the radius of the sphere is :

Lowering of value of currency relative to a foreign reference currency is called _________.

A sum of Rs 10000 becomes Rs 14641 when invested at compound interest at the yearly interest rate of 20% per annum. If the compounding is done half yearly, then for how many years was the sum invested?

A ladder 20 m long is leaning against a vertical wall. It makes an angle of 30 deg with the ground. How high on the wall does the ladder reach?

In the following question, out of the four alternatives, select the alternative which will improve the bracketed part of the sentence. In case no improvement is needed, select "no improvement".

We protested that we (was going) all the way to Haridwar.

In the following question, some part of the sentence may have errors. Find out which part of the sentence has an error and select the appropriate option. If a sentence is free from error, select 'No Error'.

It is not (A)/ such a pretty place (B)/ that I had expected. (C)/ No Error (D)

If x = 11, the value of x5 - 12x4 + 12x3 - 12x2 + 12x - 1 is

If sec2A cosec2A = x, then x is