AMC10 2016 A
AMC10 2016 A · Q3
AMC10 2016 A · Q3. It mainly tests Linear equations, Ratios & proportions.
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?
Ben 每花一美元买百吉饼，David 就少花 25 美分。Ben 比 David 多付了 12.50 美元。他们在百吉饼店总共花了多少钱？
(A)
$37.50
$37.50
(B)
$50.00
$50.00
(C)
$87.50
$87.50
(D)
$90.00
$90.00
(E)
$92.50
$92.50
Answer
Correct choice: (C)
正确答案：（C）
Solution
Answer (C): Because \$12.50 = 50 $\cdot$ \$0.25, Ben spent \$50. David spent \$50 - \$12.50 = \$37.50, and the two together paid \$87.50.
答案（C）：因为 \$12.50 = 50 $\cdot$ \$0.25，Ben 花了 \$50。David 花了 \$50 - \$12.50 = \$37.50，两人一共付了 \$87.50。
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