Question
Download Solution PDFA policeman starts chasing a thief who is 500 m ahead of him. The speed of the thief is 18 km/h, and the speed of the policeman is 36 km/h. Find the time taken by the policeman to catch the thief.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFGiven:
A policeman starts chasing a thief who is 500 m ahead of him. The speed of the thief is 18 km/h, and the speed of the policeman is 36 km/h.
Formula used:
Relative speed = Speed of policeman - Speed of thief
Time = Distance / Relative speed
Calculations:
Speed of thief = 18 km/h = 18 × (1000/3600) m/s = 5 m/s
Speed of policeman = 36 km/h = 36 × (1000/3600) m/s = 10 m/s
Relative speed = 10 m/s - 5 m/s = 5 m/s
Distance = 500 m
⇒ Time = 500 / 5
⇒ Time = 100 seconds
∴ The correct answer is option (1).
Last updated on Jul 10, 2025
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