AMC 8 2017 Problem 13
AMC8 2017 年第 13 题
基本计数原理★★★☆☆
Peter, Emma, and Kyler played chess with each other. Peter won 4 games and lost 2 games. Emma won 3 games and lost 3 games. If Kyler lost 3 games, how many games did he win?
Peter,Emma 和 Kyler 相互之间下棋。Peter 赢了 4 局,输了 2 局,Emma 赢了 3 局,输了 3 局,如果 Kyler 输了 3 局,那么他赢了几局?
- A.0
- B.1
- C.2
- D.3
- E.4
正确答案 · Correct Answer
B
解析 · Solution
Solution 1
Given games, there must be a total of wins and losses. Hence, 4 + 3 + K = 2 + 3 + 3 where is Kyler's wins. K = 1, so our final answer is 1.
继续练习