## If $$P, Q, R,$$ and $$S$$ are positive integers, and $$\dfrac{P}{Q} = \dfrac{R}{S},$$ is $$R$$ divisible by $$5?$$

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### If $$P, Q, R,$$ and $$S$$ are positive integers, and $$\dfrac{P}{Q} = \dfrac{R}{S},$$ is $$R$$ divisible by $$5?$$

by Vincen » Wed Sep 15, 2021 8:34 am

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If $$P, Q, R,$$ and $$S$$ are positive integers, and $$\dfrac{P}{Q} = \dfrac{R}{S},$$ is $$R$$ divisible by $$5?$$

(1) $$P$$ is divisible by $$140.$$

(2) $$Q = 7^x,$$ where $$x$$ is a positive integer.