Q425
A thief is noticed by a policeman from a distance of 97 m. The thief starts running and the policeman chases him. The thief and the policeman run at a speed of 21 m/sec and 23 m/sec respectively. What is the time taken by the policeman to catch the thief?
A.
40 sec
B.
45 sec
C.
62.5 sec
D.
48.5 sec
AnswerAnswer: Option D
Solution
Answer: Option D
Solution:
Relative speed = 23 - 21 = 2 m/sTime taken by the policeman = = 48.5 sec to catch the thief.