2. 职称英语
  3. One hundred boys went on a school outing. Eighty-one percent of the boys lost a

One hundred boys went on a school outing. Eighty-one percent of the boys lost a

游客2023-10-19  41
问题 One hundred boys went on a school outing. Eighty-one percent of the boys lost a shoe, 82 percent of the boys lost a sock, 77 percent of the boys lost a handkerchief and 68 percent of the boys lost a hat.
What is the minimum percentage who lost all 4 items?
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答案 0.08
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