Question
A car covers 162 km in 3 hours. The bike’s speed is 4 m/s
less than the car’s. Find the distance (in metres) travelled by the bike in 3 minutes 30 seconds.Solution
ATQ,
Speed of car = (162/3) = 54 km/h = 54 × (5/18) = 15 m/s
Speed of bike = 15 − 4 = 11 m/s
3 minutes 30 seconds = 3 × 60 + 30 = 210 seconds
Required distance = 11 × 210 = 2,310 metres
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