A boat Travels 30 kilometre upstream in a river in the same period of time as it takes to travel 50 km downstream if the rate of steam be 5 km per hour find the speed of the boat in still water
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Let speed of boat = x
upstream speed = x- 5
downstream speed = x+5
then,
ACCORDIng to the Question
30/x-5=50/x+5
=> 30 (x + 5) = 50 (x -5)
=> 30 x +150 = 50x -250
=> 20x = 400
=> x = 20
Thus the speed of the boat in still water is 20 km/h.
Let speed of boat = x
upstream speed = x- 5
downstream speed = x+5
then,
ACCORDIng to the Question
30/x-5=50/x+5
=> 30 (x + 5) = 50 (x -5)
=> 30 x +150 = 50x -250
=> 20x = 400
=> x = 20
Thus the speed of the boat in still water is 20 km/h.
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