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If p and q are both positive integers such that p/9 + q/10
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10 Aug 2018, 15:27
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Question Stats:
99% (01:06) correct
0% (00:00) wrong based on 14 sessions
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If p and q are both positive integers such that \(\frac{p}{9} + \frac{q}{10}\) is also an integer, then which one of the following numbers could p equal?
Re: If p and q are both positive integers such that p/9 + q/10
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11 Aug 2018, 02:08
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Expert Reply
Let \(k\) be an integer such that \(\frac{p}{9} + \frac{q}{10} = k\).
Since all three numbers \(p\), \(q\), and \(k\) are integers, among the given options, the only case could be: integer \((\frac{p}{9})\) + integer \((\frac{q}{10})\) = integer \((k)\)