A motor boat whose speed in still water is 15 km/h goes 40km downstream and comes back in a total time of 6 hours. find the speed of the stream
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given
speed of motorboat = 15km /hr
let the speed of stream be x
speed on going upstream. 15-x
speed " " " " " " ". downstream. 15+x
Now ;
time taken to go 40 km down..... 40÷ 15+x
same. same. up ..............40÷ 15-x
A/Q
now u can do
I hope u will understand this
speed of motorboat = 15km /hr
let the speed of stream be x
speed on going upstream. 15-x
speed " " " " " " ". downstream. 15+x
Now ;
time taken to go 40 km down..... 40÷ 15+x
same. same. up ..............40÷ 15-x
A/Q
now u can do
I hope u will understand this
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