SOLUTION: With the current you can row 24 miles in 3 hours. Against the same current, you can row only 2/3 of this distance in 4 hours. Find your rowing rate in still water and the rate of
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-> SOLUTION: With the current you can row 24 miles in 3 hours. Against the same current, you can row only 2/3 of this distance in 4 hours. Find your rowing rate in still water and the rate of
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Question 670538: With the current you can row 24 miles in 3 hours. Against the same current, you can row only 2/3 of this distance in 4 hours. Find your rowing rate in still water and the rate of the current Answer by mananth(16946) (Show Source):
Distance against 16 miles distance with wind 24 miles
t=d/r against wind -
16 / ( x - y )= 4
4 ( x - y ) = 16
4 x - 4 y = 16 ....................1
24 / ( x y y )= 3
3 ( x + y ) = 24
3 x + 3 y = 24 ...............2
Multiply (1) by 1
Multiply (2) by 1
we get y
4 x + -4 y = 16
3 x + 3 = 24
7 x = 40
/ 7
x = 6 mph
plug value of x in (1) y
4 x -4 y = 16
23 -4 -23 = 16
-4 y = 16
-4 y = -7 mph
y = 2
Rowing speed 6 mph
current speed 2 mph
