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数学
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一个商人骑一头驴要穿越1000公里长的沙漠,去卖3000根胡萝卜.已知驴一次性可驮1000根胡萝卜,但每走1公里又要吃掉1根胡萝卜.问:商人最多可卖出多少胡萝卜?
人气:306 ℃ 时间:2020-05-13 01:08:31
解答
设驴走X公里第一次卸下胡萝卜则:5X=1000(吃萝卜的数量,也等于所行走的公里数) X=200,则总共是2000根胡萝卜了;第二次驴只需要驮两次,设驴走Y公里第二次卸下胡萝卜则:3Y=1000,Y=333.3,剩下1000根胡萝卜;而...
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