作者gisanchun (阿G魔人现身...)
看板GRE_Verbal
标题[请益]计量一题
时间Sat May 5 12:46:27 2007
Carol’s age, in years, can be expressed by reversing the digits in her
father's age, in years. The sum of the digits in each age is 10.
(a) The positive difference between Carol’s age, in years, and her father’s age, in years
(b) 36
ans:(b)
我实在不懂...麻烦好心人解惑~thx~
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