Question
An early train leaves Chennai at a certain time. After 5
hours a Superfast Express leaves the same station and travels in the same direction at the speed of 200 km/h. If Superfast Express catches up the early train in 5 hours, then what is the speed of the early train?Solution
Distance travelled by Superfast Express in 5 hours = 200 Ă— 5 = 1000 km
Speed of early train = 1000 / (5 + 5) = 100 km/hr
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