Question 1157496
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<pre>

Let " t " be the time (in hours) to get the destination with tailwind (the unknown value under the question).


Then the regular time is (t+0.25) hours.


For the distance, you have this equation to find "t"

    140*(t+0.25) = (140+28)*t

or

    140t + 35 = 140t + 28t

    35        = 28t

     t        = {{{35/28}}} = {{{5/4}}} hours = 75 minutes = 1 hour and 15 minutes.    <U>ANSWER</U>
</pre>

Solved.