Find the ratio of the following:Smita works in office for 6 hours and Kajal works for 8 hours in her office. Find the ratio of their working hours.

Find the ratio of the following Smita works in office for 4 hours and Kajal works for 6 hours in her office. Find the ratio of their working hours.

Find the ratio of 30 days to 36 hours.

Solve the following: Rani takes 30 minutes to reach school from home. Ismail take 1/2 an hour to cover the same distance. Find the ratio of time taken by Rani to the time taken by Ismail.

Find the ratio of the moments of inertia of two solid spheres of same mass but densities in the ratio 1 : 8.

The speed of a garden-Snail is 50 meters per hour and that of the Cheetah is 120 kilometers per hour. Find the ratio of the speeds.

If the angles are in the ratio 1: 5: 6, then find the ratio of its sides .

Which of the following enzyme works at a pH of 1.6 in stomach and digests proteins?

A house has four tube-lights, three fans and a television. Each tube-light draws 40 W. The fan draws 80 w and the television draws 100 W. On an average, all the tube-lights are kept on for 5 hours, all fans for 12 hour and the television for 6 hours everyday. Find the cost of electric energy used in 30 days at the rate of Rs. 3.00 per KWH.