Time and Distance Questions

A square playground measures 1127.6164 sq.m. If a man walks 2 9/20 m a minute, the time taken by him to walk one round around it is approximately.

In what time will Rs.4400 become Rs.4576 at 8% per annum interest compounded half-yearly?

A Lawn roller makes 20 revolutions in one hour. The radius it runs through 25 minutes is

A spaceship travels at 1,260 km/h. How many metres does it travel in 1/10 th of a second?

What is the distance between the points (3 , 6) and (-2 , -6)?

A thief is stopped by a policeman from a distance of 350 metres. When the policeman starts the chase, the thief also starts running. Assuming the speed of the thief as 7 km/h and that of police man as 12 km/h, how far the thief would have run, before he is over taken?

Pihu and Aayu are running on a circular track of diameter 28m. Speed of Pihu is 48 m/s and that of Aayu is 40 m/s. They start from the same point at the same time in the same direction. When will they meet again for the first time?

A girl walking at the speed of 2 km/hr covers a certain distance in 7 hours 30 minutes. If she covers the same distance by cycle in 5 hours, then what is the speed (in km/hr) of cycle?