Adi, Mihai,Dan si Vlad au imperial 232 lei. Aflati ce suma are fiecare stiind ca Adi are 1/2 din suma lui Mihai; Vlad are 5/7 din suma lui Mihai, iar Dan are 11/5 din cât are Adi.
a+m+d+v=232 a=m/2 v=5m/7 d=11a/5=11/5*m/2=11m/10 m/2+m+11m/10+5m/7=232 35m/70+70m/70+77m/70+50m/70=232 232m/70=232 m=70 mihai a=70/2=35 adi d=11*70/10=77 dan v=5*70/7=50 vlad
