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想问这题狗条件2, 虽说需要14pots, 但...没有说最后一个pot是否是装满的... 那这样不就不知道一个pot有多少cup? 进而无法知道the height of pot?
所以我选了A, 想问nn们, 思路是否有问题呢?
320 The meeting must supply 420 cups of coffee.both the cups and pots are cylinder.A cup is with a diameter of 7 and a height of ***(不记得了) inner side,and a coffee pot is with a diameter of 18. what is the height of the pot? I. one pot could fill in 30 cups. II. the meeting need 14 pots. 我选D 同意选D。条件一,cup体积可求, 因而pot体积可求, 高可求 条件二, 必修提供420 cup, 则14 pot=420cup, cup可求,pot 体积可求 |
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