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Find the number of pairs of integers (x,y) with 0 < x,  y < 10 that satisfy \(\frac{1}{1-\frac{10}{x}} > 1 - \frac{5}{y}.\)

 Jun 16, 2020
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The number of pairs of integers (x,y) works out to 44.

 Jun 16, 2020

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