设甲为X岁,乙为Y岁
因为X-3=Y-X ,Y-X=39-Y
所以X=15,Y=27
甲问乙岁数,乙说当我像你这么大时,你刚3岁;当你像我这么大时,我已经39岁.那么乙今年多少岁?甲呢?
甲问乙岁数,乙说当我像你这么大时,你刚3岁;当你像我这么大时,我已经39岁.那么乙今年多少岁?甲呢?
数学人气:176 ℃时间:2020-04-19 06:14:45
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