题目内容
兄弟四人一起去买一台电视机,老大带的钱是另外三个人所带总钱数的一半,老二带去的钱是另外三个人总前钱数的
,老三带去的钱是另外三个人总前钱数的
,老四带91元.那么这台电视机是______元.
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91÷
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答:这台电视机是420元.
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