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求助！一道文字题
一道文字题：A1‘s weekly net salary=$350, 10% is used for fuel and ensurance for automobile, 15% for food, 30% for rent and utilities, 25% for saving, 20% for others. 问：to how many of the categories listed was at least $80 of A1's weekly net salary allocated?
我就是不明白这个问题是什么意思，请哪位大侠指点一二。 |
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