AMC10 2006 A

AMC10 2006 A · Q5

AMC10 2006 A · Q5. It mainly tests Money / coins, Arithmetic misc.

Doug and Dave shared a pizza with 8 equally-sized slices. Doug wanted a plain pizza, but Dave wanted anchovies on half of the pizza. The cost of a plain pizza was \$8, and there was an additional cost of \$2 for putting anchovies on one half. Dave ate all the slices of anchovy pizza and one plain slice. Doug ate the remainder. Each then paid for what he had eaten. How many more dollars did Dave pay than Doug?

Doug和Dave分享一个分成8等份的披萨。Doug想要纯披萨，但Dave想要一半披萨加凤尾鱼。纯披萨的价格是8美元，在一半上加凤尾鱼额外收费2美元。Dave吃了所有凤尾鱼披萨片和一个纯片。Doug吃了剩下的。每人支付自己吃的部分的费用。Dave比Doug多付了多少钱？

(A) 1 1

(B) 2 2

(D) 4 4

(E) 5 5

Answer

Correct choice: (D)

正确答案：（D）

Solution

Each slice of plain pizza cost $1$. Dave paid $2$ for the anchovies in addition to $5$ for the five slices of pizza that he ate, for a total of $7$. Doug paid only $3$ for the three slices of pizza that he ate. Hence Dave paid \$7 - 3 = 4$ dollars more than Doug.

每个纯披萨片1美元。Dave支付2美元凤尾鱼费用，加上他吃的5片披萨5美元，总共7美元。Doug只付3片披萨的3美元。因此Dave比Doug多付$7 - 3 = 4$美元。

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