问答题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?
题目
问答题
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?
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参考答案和解析
正确答案：
48
解析：
解答本题需要理解“I am twice as old as you were when I was as old as you are today.”，意思为：B男在A男这个年纪（36）时，B男年龄是当时A男年龄的两倍，假设B男年龄为x，则x=[36-(x-36)]*2=x,故x=48。