Question
Express train leaves Bengaluru at a certain time. After 3
hours, another train departs and moves in the same direction at the speed of 180 km/h. If this second train catches up the Express train in 9 hours, what is the speed of the Express train?Solution
Distance travelled by second train in 9 hours = 180 × 9 = 1620 km
Speed of Express train = 1620 / (3 + 9) = 135 km/hr
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