Neetu is 11 years younger than Bharti. Fifteen years later Bharti Neetu's age will be 1.2 times. What is Neetu's present age?

If  then what is the value of c.

At the rate of 8 % simple annual interest, if an amount becomes Rs. 819 in 3 years and 3 months, then what was the original amount?

Find out the H.C.F of 306, 204 and 136.

Shyam covers a distance of 400 km in 5 hours. He traveled for some time at a speed of 85 km / h and the rest at a speed of 55 km / h. How long did he travel at high speed?

What should be added to to get the sum ?

In equation the first root is x=2 then find out  the second root of equation.

From a right cone of height h and with base radius r a cone has been cut of from the centre of the height. The volume of remaining frustum of the cone is.