Question
A cyclist covers 120 km in 6 hours. The speed of a
motorbike is 10 km/h more than the speed of the cyclist. Find the time taken by the motorbike (in minutes) to cover 90 km.Solution
ATQ,
6 hours = 6 + (0/60) = 6 hours Speed of cyclist = (120 / 6) = 20 km/h Speed of motorbike = 20 + 10 = 30 km/h Required time = (90 / 30) = 3 hours = 3 Ć 60 = 180 minutes
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