A policeman spots a thief at a distance of 360 m. Both the policeman and the…
2023
A policeman spots a thief at a distance of 360 m. Both the policeman and the thief simultaneously start running, with the former chasing the latter. While the thief runs at the speed of 8 km/h, the policeman runs at 9.2 km/h. How many metres will the policeman have to run before he catches up with the thief?
Answer: D. 2760 — The relative speed is 9.2 - 8 = 1.2 km/h. To close 360 m = 0.36 km, time = 0.36/1.2 = 0.3 h. The policeman runs 9.2 x 0.3 = 2.76 km = 2760 m.
- A.
2852
- B.
2714
- C.
2668
- D.
2760
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Correct answer: D
The relative speed is 9.2 - 8 = 1.2 km/h. To close 360 m = 0.36 km, time = 0.36/1.2 = 0.3 h. The policeman runs 9.2 x 0.3 = 2.76 km = 2760 m.
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