AMC10 2005 B

AMC10 2005 B · Q1

AMC10 2005 B · Q1. It mainly tests Fractions, Money / coins.

A scout troop buys 1000 candy bars at a price of five for \$2. They sell all the candy bars at a price of two for \$1. What was their profit, in dollars?

一个童子军部队以5条2美元的价格购买了1000条糖果。他们以2条1美元的价格卖出了所有糖果。他们的利润是多少美元？

(A) 100 100

(B) 200 200

(D) 400 400

(E) 500 500

Answer

Correct choice: (A)

正确答案：（A）

Solution

The scouts bought $1000/5 = 200$ groups of 5 candy bars at a total cost of $200 \cdot 2 = 400$ dollars. They sold $1000/2 = 500$ groups of 2 candy bars for a total of $500 \cdot 1 = 500$ dollars. Their profit was $500 - 400 = 100$.

童子军买了$1000/5 = 200$组5条糖果，总成本$200 \cdot 2 = 400$美元。他们卖了$1000/2 = 500$组2条糖果，总收入$500 \cdot 1 = 500$美元。利润是$500 - 400 = 100$美元。

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