Question

7. A bus covers a certain distance in 3 hours 20 minutes at an average speed of 45 km/h. How
long will it take to cover the same distance at a speed of 36 km/h?
​

Answer 1

4.16 hours

Step-by-step explanation:

First case

Time taken = 3 h 20 m = 3.33 h

Speed = 45 km/h

Distance = speed × time

= 3.33 h × 45 km/h

= 149.85 km

Second case

Distance = 149.85 km

Speed = 36 km/h

Time = distance/speed

= 149.85 km/36 km/h

= 4.16 hours.

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