Răspuns :
[tex]\it n=\overline{abc}\\ \\ b=2a \Rightarrow b = cifr\breve a\ par\breve a\ \ \ \ (*)\\ \\ b=\dfrac{c}{3} \ \stackrel{(*)}{\Longrightarrow} c =6,\ \ b=2,\ \ a=1\\ \\ Prin\ urmare,\ n=126[/tex]
[tex]\it n=\overline{abc}\\ \\ b=2a \Rightarrow b = cifr\breve a\ par\breve a\ \ \ \ (*)\\ \\ b=\dfrac{c}{3} \ \stackrel{(*)}{\Longrightarrow} c =6,\ \ b=2,\ \ a=1\\ \\ Prin\ urmare,\ n=126[/tex]