Question

A car covers a certain distance in 25 hours. If it reduces the speed by 1/5th, the car covers 200 km less in the same time period. The original speed of the car is how much?

• A. 60 km/hr
• B. 30 km/hr
• C. 40 km/hr
• D. 50 km/hr

Answer 1

Answer:

C. 40 km/hr

Let the speed of the car be x km/hr Distance covered in 25 hrs = speed × time = 25x km After reducing the speed to 4/5th of x, Distance covered = Distance covered in 25 hrs – 200 ⇒(4/5) × x × 25 = 25x – 200 ⇒20x = 25x – 200 x = 40