If p :
q = 4 : 5, then find (8p + 3q) : (8p - 3q).

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Accepted Answer

1. Let $p:q=4:5$. So take $p=4k$ and $q=5k$.
2. Numerator: $8p+3q=8(4k)+3(5k)=32k+15k=47k$.
3. Denominator: $8p-3q=32k-15k=17k$.
4. Ratio $=47k:17k=47:17$. So the correct choice is (a).

FINAL_ANSWER: a

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