问答题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?
问答题
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?
参考解析
解析：
81+82+77+68=308.若使丢4件物品的人数最少，则丢3件物品的人数最大，即100人，由此可知丢4件物品的人数最少时应为8人，即丢4件物品的人数所占最小比例为8%。
81+82+77+68=308.若使丢4件物品的人数最少，则丢3件物品的人数最大，即100人，由此可知丢4件物品的人数最少时应为8人，即丢4件物品的人数所占最小比例为8%。
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