Mathematics · Speed, Time and Distance
A train running at 90 km/hr takes 40 seconds to pass a platform. Next, it takes 19 seconds to pass a man riding an electric bicycle at 18 km/hr in the opposite direction in which the train is going. What is the ratio of the length of the train to the length of the platform?
- 138:33
- 257:43✓
- 345:41
- 423:21
Correct answer
57:43
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