A car covers a certain distance in 3 h with a speed of 108 km/h. If the speed is reduced by 27 km/h, then the time taken by the car to cover the same distance will be:
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 4 hr.
Speed = 108 km/h
Time = 3 hr
Distance = Speed × Time
The distance covered by the car = 108 × 3 = 324 km
If the speed is reduced by 27 km/h -
New speed = 108 - 27 = 81 km/h
Time taken by the car to cover the same distance = 324/81 = 4 hr