there are 4 people ,A ,B,C and D .given that there is a 3-yuan difference in age between A and C,
问题描述:
there are 4 people ,A ,B,C and D .given that there is a 3-yuan difference in age between A and C,
there are 4 people ,A ,B,C and D .given that there is a 3-yuan difference in age between A and C,a 3-yuan difference B and D ,a 2-yuan difference between A and D and a 4-yuan difference between B and C ,what is the age difference between A and B
答
A和B差一岁啊