Question

Tìm số ab thỏa mãn :ab *5 = 1ab

Answer 1

\(ab\cdot5=100+ab\Rightarrow ab+ab+ab+ab+ab=100+ab\)

\(4.ab=100\Rightarrow ab=\frac{100}{4}=25\)

ds: ab=25

Answer 2

đúng rồi ! 25 đó

Answer 3

25 nha bạn 100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000%