a boat covers 20 km in 5 hours while moving down a river flowing at 2 km/hr . find the speed of the boat in still water . explain step by step. I will mark brainleast.
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Answer: 2 km/hr
Step-by-step explanation:
let the speed of boat in still water be X km/hr
speed of boat while moving down the river = distance covered / time
= 20/5
= 4 km/hr
speed in still water = speed of boat in moving water - flow of water
=> X = 4 - 2 = 2 km/hr
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