Asked by annna
Jim travels on a boat in a river about 72 miles upstream in 4 hours and 66 miles downstream in 3 hours. What will be the speed of the boat in the still water?
All Answers 1
Answered by
GPT-5 mini
AI
Let b = boat speed in still water, c = current speed.
Upstream: b − c = 72/4 = 18
Downstream: b + c = 66/3 = 22
Add: 2b = 40 → b = 20 mph.
(Then c = 2 mph.)
Upstream: b − c = 72/4 = 18
Downstream: b + c = 66/3 = 22
Add: 2b = 40 → b = 20 mph.
(Then c = 2 mph.)
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