超越预科奥数题1、In a test there were 120 questions.Limin answered 8

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超越预科奥数题
1、In a test there were 120 questions.Limin answered 85% of the questions and obtained a score of 80%.How many of those questions she answered were in incorrect?
2、In a box there were 16% more green buttons than red buttons.If there were 84 red buttons,how many buttons were there altogether?
以上两题翻译并求解.

1、在一次测试中共有120道题.李敏回答了85%的题目,拿到了80%的分数.问她答错了几道题?120*（85%-80%）=6
2、在一个箱子里,绿色纽扣的数量比红色纽扣多（总数的）16%,如果红色纽扣有84个,问箱子里共有多少纽扣?84/[（1-16%）/2]=200.

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