1987 AHSME Problems/Problem 10

Problem

How many ordered triples $(a, b, c)$ of non-zero real numbers have the property that each number is the product of the other two?

$\textbf{(A)}\ 1 \qquad \textbf{(B)}\ 2 \qquad \textbf{(C)}\ 3 \qquad \textbf{(D)}\ 4 \qquad \textbf{(E)}\ 5$

1987 AHSME (Problems • Answer Key • Resources)
Preceded by Problem 9	Followed by Problem 11
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