A train travels 360 km in 4 hours. If its speed is increased by 20 km/h, how much time will it take to cover the same distance?
- 3.27 hours
- 3.5 hours
- 4 hours
- None of these
Explanation
Speed = 360 ÷ 4 = 90 km/h
New speed = 90 + 20 = 110 km/h
Time = 360 ÷ 110 = 3.27 hours (approx.).
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