鸡兔同笼,鸡比兔多24只,共138条腿,鸡和兔各有多少只?
鸡兔同笼,鸡比兔多24只,共138条腿,鸡和兔各有多少只?
数学人气:512 ℃时间:2020-01-19 20:44:14
优质解答
兔子数=(138-24*2)/(4+2)=15只; 鸡数=15+24=39只.
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