Question

A thief running at 8 km/hr is chased by a policeman whose speed is 10 km/hr. if the thief is 100 m ahead of the policeman,

Answer 1

Answer:

3 minutes

Step-by-step explanation:

Rest of the question is maybe...

"... how long will it take for the policeman to catch the thief?"

The policeman is running 10-8 = 2 km/hr faster.

So we need to find how long it takes to cover distance 100 m at speed 2 km/hr.

To have the same units, use 100 m = 0.1 km.

time = distance / speed

= 0.1 km  /  2 km/hr

=  0.05 hr

= 0.05 × 60 min

= 3 min