If a man walks 1 km/hr faster than his usual speed then he covers a distance of 3 km in 15 minutes less time. Find his usual speed.

A man can walk 8 km in 1 hour 15 minutes .Find his speed.

A person takes 40 minutes more than his usual time when he covers a distance of 20 km at 5 km/h.If he covers the same distance at 8 km/h, he takes x minutes less than the usual time. Whatis the value of x ?

A cyclist covers 1.5 km in 5 minutes. Find his speed in km/hr.

Raju travels at half of his usual speed and reaches his office 24 minutes late than his usual time. If Raju travels at his usual speed, then what will be the time taken by him to reach his office?

By walking at (3)/(4) of his usual speed,a man reaches his office 20 minutes later than his usul time.Find the usual time taken by him to reach his office.