Question
Train B leaves Mumbai at a certain time. After 4 hours
Superfast Express leaves the same station and travels in the same direction at the speed of 150 km/h. If Superfast Express catches up the train B in 6 hours, then what is the speed of train B?Solution
Distance travelled by Superfast Express in 6 hours = 150 × 6 = 900 km
Speed of train B = 900 / (4 + 6) = 90 km/hr
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