Question
A spy is 1.8 km ahead of an agent who begins to chase him.
The agent runs at a speed of 12 m/s, while the spy runs at 8 m/s. How much time will the agent take to catch the spy?Solution
ATQ,
Relative speed = 12 – 8 = 4 m/s
Distance = 1.8 Ă— 1000 = 1800 metres
Required time = (1800 / 4) = 450 seconds = (450 / 60) = 7.5 minutes
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