A car covers a certain distance in 45 minutes at a speed of 60 kmph. What should be the speed in kmph, if it has to cover the same distance 5 minutes earlier?

Show answer & explanation

Answer: (D) 67.5

Explanation

Distance = 60 × 45/60 = 45 km. To cover it in 40 minutes, speed = 45 ÷ (40/60) = 67.5 km/h.