[tex]\it Not\breve am\ cele\ dou\breve a\ numere\ cu \ a\ \d si\ b\ .\\ \\ \\ \dfrac{a}{b}=\dfrac{2}{5} \Rightarrow b=\dfrac{5a}{2 } \Rightarrow b=2,5a\ \ \ \ \ \ (*)\\ \\ \\ b-a=60 \stackrel{(*)}{\Longrightarrow} 2,5a-a=60 \Rightarrow 1,5a=60\bigg|_{\cdot2} \Rightarrow 3a=120\bigg|_{:3} \Rightarrow a=40\\ \\ \\ b=2,5a=2,5\cdot40=100[/tex]
