1.

A bua cover a certain distance in 2 hours 30 min at a uniform speed of 60km/h . how long will it take to cover the same distance at speee of 50 km /h

Answer»

D=60km/h×2.5h=150km
then,
d=s×t
so,
150km = 50 km/h×t
150km×h/50km=t
then,
t=3h or 60×3=180min

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