Question

Ben 每花一美元买贝果，David 就少花 $25$ 美分。Ben 比 David 多付 $\$12.50$ 。他们两人在贝果店一共花了多少钱？

For every dollar Ben spent on bagels, David spent $25$ cents less. Ben paid $\$12.50$ more than David. How much did they spend in the bagel store together?

$\$37.50$

$\$50.00$

$\$87.50$

$\$90.00$

$\$92.50$

答案：C

知识点：比与比例钱币

难度评级：870

解答：

Ben 每花一美元，David 花 $75$ 美分，所以两人的差额是 $25$ 美分。总差额为 $\$12.50$ ，也就是 Ben 花费的四分之一。

Ben 花了 $12.50\div0.25=50$ 美元，David 花了 $37.50$ 美元。两人共花 $87.50$ 美元。

所以正确答案是 C。

For each dollar Ben spent, David spent $75$ cents, so the difference was $25$ cents. The total difference $\$12.50$ is therefore one quarter of Ben's spending.

Ben spent $12.50\div0.25=50$ dollars, and David spent $37.50$ dollars. Together they spent $87.50$ dollars.

Thus, the correct answer is C.

2016 AMC 10A 第 3 题

答案：C

难度评级：870

解答：

其他年份的第 3 题