A policeman chasing a thief is 0.5 km behind the thief. The speed of the thief is 80% of the speed of the policeman and the policeman catches him in 12 minutes. What is the speed of the thief (in km/h)?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 10.
Ratio of Speed:
Policeman : thief = 5x : 4x
According to the question,
x = 2.5
Speed of thief = 4x = 4 × 2.5 = 10 km/h