Question 119

A policeman goes after a thief who has 100 metres start, if the policeman runs a kilometre in 8 min, and the thief a km in 10 min, the distance covered by thief before he is over-powered is

Solution

given that thief is already 100 m far from police and speed of police is 125 m/min

Speed of thief = 100 m /min

Relative speed of police= 125-100=25 m/min

Using distance = speed x time

100 = 25 × T

T= 4min

In 4 minutes ,thief can cover = 100 × 4 = 400 m

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