A train travelling at a speed of 55 km/hr travels from place X to place Y in 4
hours. If its speed is increased by 5 km/hr, then the time of journey is reduced by
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Answer:
The time of journey is reduced by 19 minutes 48 seconds.
Step-by-step explanation:
Given
Speed of the train = 55 km/h
Time taken in travelling from X to Y = 4 hours
Distance between the place X and Y = Speed × Time
= 55 × 4 = 220 km
If the speed is increased by 5 km/h, then the new speed = 55 + 5 = 60 km/h
Time taken in travelling from X to Y = Distance/Speed
= 220 / 60
= 3.67 hours
The difference between the time = 4 - 3.67 = 0.33 hours = 19.8 minutes = 19 minutes 48 seconds
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