hanhpt0903 hanhpt0903

23-07-2021
Mathematics

contestada

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?

Respuesta :

deelight3 deelight3

23-07-2021

Answer:

12

Step-by-step explanation:

12

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