设这个数是10x+y
x=3/4y
y-2=x
联立得 x=6 y=8
所以这个数是68
一个两位数,十位上的数字是个位上的数字的四分之三,个位上的数字减去2就和十位数上的数字相等,这个两位
一个两位数,十位上的数字是个位上的数字的四分之三,个位上的数字减去2就和十位数上的数字相等,这个两位
数学人气:703 ℃时间:2020-03-12 07:16:52
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