1950 AHSME Problems/Problem 31

Problem

ohn ordered $4$ pairs of black socks and some additional pairs of blue socks. The price of the black socks per pair was twice that of the blue. When the order was filled, it was found that the number of pairs of the two colors had been interchanged. This increased the bill by $50\%$ . The ratio of the number of pairs of black socks to the number of pairs of blue socks in the original order was:

$\textbf{(A)}\ 4:1 \qquad \textbf{(B)}\ 2:1 \qquad \textbf{(C)}\ 1:4 \qquad \textbf{(D)}\ 1:2 \qquad \textbf{(E)}\ 1:8$

Solution

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1950 AHSC (Problems • Answer Key • Resources)
Preceded by Problem 30	Followed by Problem 32
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1950 AHSME Problems/Problem 31

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