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andrew11
[14]
3 years ago
14
5 năm trước tổng số tuổi của hai mẹ con là 55 tuổi. Hiện nay tuổi con bằng 4/9 lần tuổi mẹ. Tính số tuổi của mẹ và tuổi con hiện
nay?
Mathematics
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1
answer:
soldi70
[24.7K]
3 years ago
3
0
Answer:
12
Step-by-step explanation:
12
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