Fie a, b si c numerele. (a=cel mai mic numar ; c=cel mai mare numar)
[tex] \frac{a}{2}= \frac{b}{4} = \frac{c}{7}=k=> \\ \\ => a=2k;~b=4k~si~c=7k. \\ \\ c-a=60<=>7k-2k=60<=>5k=60=>k=12. \\ \\ a=2k=2*12=24. \\ b=4k=4*12=48. \\ c=7k=7*12=84. \\ \\ Numerele~cautate~sunt~24,~48~si~84.[/tex]
