A policeman sees a thief at a distance of 150 m. He starts chasing the thief who is running at a speed of 5 m/sec, while the policeman chases with a speed of 7m/sec. Find the distance covered by the thief when he is caught by the policeman.

375 m

Relative speed of thief and policeman = 7 - 5 = 2 m/sec

Time = \(\frac{Distance }{Speed }\)

= \(\frac{150 }{2 }\)

= 75 sec

Distance covered by Thief before he was caught =

= 5 × 75

= 325 m