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.
Show answer & explanation
Correct answer: C
Explanation
The correct answer is Option 3 i.e. 375 m.
We know that
Distance = Speed × Time
Now, according to the question:
Policemen see the thief at a distance of 150 m
Let, the time = T
⇒ 7T = 150 + 5T
⇒ 2T = 150
⇒ T = 75
It will take the policemen 75 seconds to catch the thief
The thief would have run 75 × 5 = 375 m
Therefore, the thief will cover 375 m before he is caught by the policemen.