2.Peter is 12 tears old and his grandfather is 63 years old now.
(A) After how many years's time will Peter'a age be __1_ of his grandfahter'sage?
(B) How many years ago was grandfather's age 18 times Peter's ?
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收錄日期: 2021-04-13 19:41:16
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https://hk.answers.yahoo.com/question/index?qid=20071016000051KK03008