A boat running downstream covers a distance of 30 km in 5 hours while for covering the same distance upstream, it takes 6 hours. What is the speed of the boat in still water?

Options
- 5 km/hr
- 5.5 km/hr
- 6 km/hr
- 15 km/hr


CORRECT ANSWER : 5.5 km/hr

Discussion Board
speed of the boat = 1/2[Downstream speed+ Upstream speed]

Sd=D/T=30/5=6km/hr
Su=30/6=5km/hr
Speed of the boat=1/2[11]=5.5km/hr




Aishwarya 12-8-2020 02:51 AM

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