A thief steals a car at 3:30 A.M. and drives it at 64 km/h. The thief is discovered at 4:30 A.M. and the owner starts the chase with another car at 80 km/h. When will he catch the thief?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 8:30 AM.
In the 1 hour before the owner starts, the thief travel
= 64 km/h × 1 hour = 64 km
Both are moving in the same direction :
Relative speed = 80 − 64 = 16 km/h
Time = Distance / Relative speed
Time = = 4 hours
⇒ 4:30 + 4 hours =8:30 A.M.