#### Sao kkkkkkkkkks

10/03/2017 at 12:10-
Nguyễn Việt Hoàng 10/03/2017 at 12:10
Calling the number is: ab.

According to the output we have: ab = (a + b) x 8

<=> 10a + b = 8a + 8b

=> 2a = 7b

=> A = 7; B = 2

So the number to find is 72 -
Faded 26/01/2018 at 12:28
Calling the number is: ab.

According to the output we have: ab = (a + b) x 8

<=> 10a + b = 8a + 8b

=> 2a = 7b

=> A = 7; B = 2

So the number to find is 72