SOLUTION: an airplane can travel 345 mph in still air. if it travels with the wind in the same length of time it travels 1645 miles against the wind, what is the speed of the wind?

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Question 1204226: an airplane can travel 345 mph in still air. if it travels with the wind in the same length of time it travels 1645 miles against the wind, what is the speed of the wind?
Found 2 solutions by ikleyn, josgarithmetic:
Answer by ikleyn(52866) About Me  (Show Source):
You can put this solution on YOUR website!
.

Something of extreme importance is missed in your post, which makes the solution impossible.



Answer by josgarithmetic(39628) About Me  (Show Source):
You can put this solution on YOUR website!
                    SPEED          TIME          DISTANCE
 
WITH WIND          345+w            x               d

AGAINST            345-w            x             1645

Description indicates speed of wind, w, the equal time each way, x, and the distance with the wind, d,
are all unknown. More information is needed if you want a value result for w.

The best to be done with what you have is
d%2F%28w%2B345%29=1645%2F%28345-w%29
-
1645%28w%2B345%29=d%28345-w%29
1645w%2B1645%2A345=345d-dw
1645w%2Bdw=345d-1645%2A345
w%281645%2Bd%29=345d-1645%2A345
highlight_green%28w=%28345d-1645%2A345%29%2F%28d%2B1645%29%29