Question

aflati un numar natural de 2 cifre stiind ca raportul dintre el si rasturnatul sau are valoarea de 1,2

Answer 1

$\frac{\overline{ab}}{\overline{ba}} = \frac{12}{10}$

$\frac{10a+b}{10b+a} = \frac{6}{5}$

$5(10a+b)=6(10b+a)$
$50a+5b=60b+6a$
$44a=55b ~~~~~|:11$
$4a=5b$
=>$a=5 ~si ~ b=4$

Verificare :
$\frac{54}{45} =1,2~ok$