AMC12 2007 B

AMC12 2007 B · Q4

AMC12 2007 B · Q4. It mainly tests Ratios & proportions.

At Frank's Fruit Market, $3$ bananas cost as much as $2$ apples, and $6$ apples cost as much as $4$ oranges. How many oranges cost as much as $18$ bananas?

在 Frank 的水果市场，$3$ 根香蕉的价格与 $2$ 个苹果相同，且 $6$ 个苹果的价格与 $4$ 个橙子相同。多少个橙子的价格与 $18$ 根香蕉相同？

(A) 6 6

(B) 8 8

(D) 12 12

(E) 18 18

Answer

Correct choice: (B)

正确答案：（B）

Solution

$3$ bananas cost as much as $2$ apples, so $18$ bananas cost as much as $12$ apples. Since $6$ apples cost as much as $4$ oranges, $12$ apples cost as much as $8$ oranges, giving $(B)$.

$3$ 根香蕉的价格与 $2$ 个苹果相同，所以 $18$ 根香蕉的价格与 $12$ 个苹果相同。又因为 $6$ 个苹果的价格与 $4$ 个橙子相同，所以 $12$ 个苹果的价格与 $8$ 个橙子相同，因此答案为 $(B)$。

Topics

AR.004 Ratios & proportions