A man is 36 years old.He asks the other man how old he is.The other man answers:“I am twice as old as you were when I wa
问题描述：
A man is 36 years old.He asks the other man how old he is.The other man answers:“I am twice as old as you were when I was as old as you are today.” How old is the other man?
答
“when I was as old as you are today”当我36岁时,“you were ” Y岁.“I am ”（现在）X岁“twice as old as”两倍于 “you were ”.故有X=2Y,X-36=36-Y.
X=48,Y=24
答案为48