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If 3/p = 6 and 3/q = 15 then p – q = ?

1/3
2/5
3/10
5/6
Explanation:
$\dfrac{3}{p}$=6, p = $\dfrac{3}{6}=\dfrac{1}{2}$ and
$\dfrac{3}{q}=15$ ,q=$\dfrac{3}{15}=\dfrac{1}{5}$ then
p – q = 1/2 – 1/5 = 3/10
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