自然数是:1,2,3,4,5 ......吧?
I guest the value of 乙 is : x*y=4
1).乙: 1*4=4 甲: 1+3 = 4
2) 乙: 2*2=4 甲 2+2 = 4
when 甲说:“我不知道X和Y"各"是多少, then"各"mean that he
think the number is deference,so the value of 甲 must be: x+y = 5
所以 1,3 is right
I guest the value of 乙 is : x*y=4
so it is only two ways to get 4 in in nature number:
1).乙: 1*4=4 甲: 1+4 = 5
2) 乙: 2*2=4 甲 2+2 = 4
when 甲说:“我不知道X和Y"各"是多少, then"各"mean that he
think the number is deference,so the value of 甲 must be: x+y = 5