A high-speed express train, traveling at 90 kmph, completely passes a goods train moving in the opposite direction at 54 kmph in 50 seconds. How long will it take for the express train to completely overtake the goods train if they were both moving in the same direction?

Correct answer marked below

100 seconds

144 seconds

200 seconds

Correct

288 seconds

300 seconds

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What this question tests

Your application of distance = rate × time to trains, boats, and commuters, including relative speed.

Mixing units (miles per hour vs. minutes) or averaging speeds — average speed is total distance over total time.

­A high-speed express train, traveling at 90 kmph, completely passes a goods train moving in the opposite direction at 54 kmph in 50 seconds. How long will it take for the express train to completely overtake the goods train if they were both moving in the same direction?