ok, the answer is 18. a=24 a=2*b1 a1=b a-a1 = b-b1 Solve the equations, b=18 |
Excuse my poor English. Here is the original question in English ... John and Jane are a couple. John is now 24 years old. He is now twice as old as Jane was, when he was as old as Jane is now. I changed the question a little bit to simplify it in Chinese. 本贴由[有空想想]最后编辑于:2006-1-22 16:52:36 本贴由[有空想想]最后编辑于:2006-1-22 19:35:46 |
如果“when he was as old as Jane is now”是问句,则提问:在那一年他与珍现在的年龄相同? 如果“when he was as old as Jane is now”是时间条件句,则此题缺少提问 |
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