If a train travels 180 km at a speed of 60 km/h, how much less time will it take to complete the same journey at a speed of 90 km/h?
Q1. If a train travels 180 km at a speed of 60 km/h, how much less time will it take to complete the same journey at a speed of 90 km/h?
Answer: 60 mins
Explanation: Time at 60 km/h = 180/60 = 3 hours; time at 90 km/h = 180/90 = 2 hours. Time saved = 1 hour = 60 minutes.