Question

on a 60 kilometre straight road a bus travels the first 30 kilometre with a uniform speed of 30 kilometre per hour how fast must the bus travel the next 30 kilometres so as to have average speed of 40 kilometre per our for the entire trip​

Answer 1

Answer:

The bus must travel at a speed of 60 km/hr.

Explanation:

60 km /40km = 3/2 hr

for travelling 30 km bus takes 1 hr hence next 30 km in 1/2 hr.

so speed for next 30 km should be 60 km/hr