A bus takes 48 minutes to cover a certain distance when travelling at a speed of 50 km/ h. How much time will it take to cover the same distance when travelling at a speed of 30 km/h?
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Answer:
Given, Speed =50 km/hr =50/60=5/6 km/min
Time taken by bus to cover distance =48 min
Distance=speed×time=48×
6/5
=40 km
∴ Time it will take to cover 40 km at 30 km/h
= distance / speed =40/30 =
3 /5 hrs
=4×20 min
= 80 minutes.
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