A car covers a distance of 40 km in 24 minutes. If its speed is decreased by 40 km/hr, then what time will it take to cover the same distance?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is Option 4 i.e. 40 minutes.
Initial Speed = 40/(24/60) = 100 km/hr
New Speed = 100 - 40 = 60 km/hr
New Time = 40/60 = 2/3 hours = 40 minutes