SOLUTION: The boat could travel 112 miles downstream in 4 hours but required 6 hours to travel 48 miles upstream. What was the speed of the boat in still water and what was the speed of the

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Question 66331This question is from textbook An Incremental Development
: The boat could travel 112 miles downstream in 4 hours but required 6 hours to travel 48 miles upstream. What was the speed of the boat in still water and what was the speed of the current? This question is from textbook An Incremental Development

Answer by checkley71(8403) About Me  (Show Source):
You can put this solution on YOUR website!
x+y=112/4 & x-y=48/6
x+y=28 & x-y=8
x=28-y
(28-y)-y=8
28-2y=8
-2y=-20
y=-20/-2
y=10 this is the speed of the current
x+10=28
x=28-10
x=18 the speed of the boat in still water.
proof
18-10=48/6
8=8