SOLUTION: Suppose a boat travels 1 hour downstream and then returns in 1 hour 20 minutes. If the speed of the current is 3 kph, find the speed of the boat and the distance it traveled downst
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Question 785024: Suppose a boat travels 1 hour downstream and then returns in 1 hour 20 minutes. If the speed of the current is 3 kph, find the speed of the boat and the distance it traveled downstream. Answer by mananth(16946) (Show Source):
You can put this solution on YOUR website! boat speed x km/h
current speed 3 km/h
..
against currentspeed x- 3
withcurrent x+ 3
..
Against current 1.2 hours
with current x+y 1 hours
Distance is same. D=r*t
1.2 ( x - 3 ) = 1 ( x + 3 )
1.2 x - 3.6 = 1 x + 3
1.2 x - 1 x = 3.6 + 3
0.2 x = 6.6
/ 0.2
x = 33 km/h
boat speed = 33 km/h
you can calculate distance. d=rt
