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If p - q / p

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If p - q / p [#permalink] New post 13 Oct 2017, 01:57
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If \frac{p - q}{p} = \frac{2}{7}, then \frac{q}{p} =

A. \frac{2}{5}

B. \frac{5}{7}

C. 1

D. \frac{7}{5}

E. \frac{7}{2}
[Reveal] Spoiler: OA

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Intern
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Re: If p - q / p [#permalink] New post 13 Oct 2017, 05:04
(p-q)/p = 2/7
1-q/p = 2/7
q/p = 5/7
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Re: If p - q / p [#permalink] New post 15 Oct 2017, 02:28
\frac{p-q}{p} = \frac{2}{7}

p-q = \frac{2}{7}p

p-\frac{2}{7}p = q

\frac{5}{7}p = q

\frac{q}{p}=\frac{5}{7}

Answer B
Re: If p - q / p   [#permalink] 15 Oct 2017, 02:28
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