A motorcyclist travels 200 km in 1 hr. How many minutes it would take him to travel 120 km?

A) 72 minutes

B) 50 minutes

C) 36 minutes

D) 24 minutes

In 1 hour = 200km

He travels in 60 minutes  = 200km

So, 1km travels in = 3/10 minutes

Then 120 km travel in = 3/10×120 minutes

= 36 minutes