Question

A man covers a certain distance in 50 minutes, if he travels at a speed of 48km/hr. At what speed should he travel in order to reduce the time of journey:
by 20 minutes (ii) to 20 minutes ?​

Answer 1

Answer:

80kmph and 120kmph

Step-by-step explanation:

Distance is constant. Therefore 48*50= x*30

x= 80kmph

And 48*50= x*20

x = 120kmph