a man can row 12km/hr.in still water.It takes him 8hrs.to row to a place and back to the starting point.If the speedof current is 3km/hr,how far is the place?
Answers
Answered by
1
Answer:
Speed of the man in still water = 12 km/hr
Speed of the stream = 3 km/hr
Speed downstream = (12+3) = 15 km/hr
Speed upstream = (12-3) = 9 km/hr
Average Speed
= Speed downstream × Speed downstream /Speed in still water
15*9/12
= 15*3/4
45 /4= 11*1 /4 km/hr..
plzz mark brainlisdt ans follow me
Similar questions