Question 1163732
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An informal solution -- which is nearly identical to the formal algebraic solution provided by tutor @ikleyn.<br>
(Solving a problem informally -- by THINKING your way through the problem logically -- can be good mental exercise.)<br>
The difference in the two speeds was 20mph;
the difference in the distances was 40 miles;
therefore, the amount of time was 2 hours;
therefore, the distance Allison drove was 62*2 = 124 miles.<br>