x : 3 = 138 + 54
x : 3 = 192
x = 576
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x : 3 = 138 + 54
x : 3 = 192
x = 192 x 3
x = 576
x : 3 = 138 + 54
==> x : 3 = 192
==> x = 192 x 3
==> x = 576
x : 3 = 138 + 54
x : 3 = 192
x = 192 . 3
x = 576
thung dau chua 125 l va 8 can dau moi can co 5 l hoi cua hang do co tat cao baao nhieu can dau
tim mot so biet rang so do gap len 9 lan roi bot di 24 thi duoc 30