If Sakib drove at 60 miles per hour for 2 hours, how far did he go in the last 20 minutes?

A 120 miles

B 40 miles

C 36 miles

D 20 miles

Correct Answer: Option D

60 miles per hour means, in 60 minutes goes 60 miles In 1 minutes goes 60/60 miles in 20 minutes goes 60 x 20/60 = 20 miles