Question

a bus covers a certain distance in 3 hours 20 minutes at an average speed of 45 kilometre per hour how long will it take to cover the same distance at the speed of 36 km per hour​

Answer 1

Answer:

4hours

Step-by-step explanation:

Let distance be d;

avg.speed1=45kmph

time taken at avg.speed1 is 3.2hours

avg.speed=distance/total time==>45=d/3.2==>d=144km;

avg.speed2=36kmph

using avg.speed formula t=144/36==>t=4hours