AMC8 1993
AMC8 1993 · Q1
AMC8 1993 · Q1. It mainly tests Fractions, Parity (odd/even).
Which pair of numbers does NOT have a product equal to 36?
以下哪一对数的乘积不等于36？
(A)
{-4, -9}
{-4, -9}
(B)
{-3, -12}
{-3, -12}
(C)
{1/2, -72}
{1/2, -72}
(D)
{1, 36}
{1, 36}
(E)
{3/2, 24}
{3/2, 24}
Answer
Correct choice: (C)
正确答案：（C）
Solution
\frac{1}{2} \times (-72) = -36.
\frac{1}{2} \times (-72) = -36。
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