Speed Time and Distance - Mathematics Questions and Answers

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Mathematics » Speed Time and Distance

A motorboat whose speed is 20 km/h in still water takes 30 minutes more to go 24 km upstream than to cover the same distance downstream. If the speed of the boat in still water is increased by 2 km/h, then how much time will it take to go 39 km downstream and 30 km upstream?


3h 40m


2h 40m


2h 50m


3h 10m