SOLUTION: A boat traveled downstream a distance of 90 mi and then came right back. If the speed of the current was 20 mph and the total trip took 6 hourscomma nbspfind the average speed

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Question 1145946:
A boat traveled downstream a distance of 90 mi and then came right back. If the speed of the current was 20 mph and the total trip took 6 hourscomma nbspfind the average speed of the boat relative to the water.
Found 2 solutions by josgarithmetic, ikleyn:
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
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total trip took 6 hourscomma nbspfind
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What ?

Answer by ikleyn(52781) About Me  (Show Source):
You can put this solution on YOUR website!
.

A boat traveled downstream a distance of 90 mi and then came right back. If the speed of the current was 20 mph
and the total trip took 6 hourscomma nbspfind the average speed of the boat relative to the water.
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With the speed of the current of 20 mph,  it is a mountain river.  Something like a waterfall.

I do not think that boats are able to travel  "upstream"  and even  "downstream"  in such a river.


If downstream,  then only once,  after which case a boat becomes a  "scrap metal"  (if it was made of metal).


To get some knowledge on the subject,  look into this web-site

https://hypertextbook.com/facts/2006/NervanaGaballa.shtml


Avoid travel at such dangerous conditions (!)