Question

VArstele: Mama+TAta+BAiat+FaTA= 121. BAIAT= FATA+2. TATA= MAMA+1. (FATA+BAIAT)=(TATA+MAMA)-49. CE VARSTA ARE FIECARE?

Answer 1

m+t+b+f=121                  m+m+1+f+2+f=121      2m+2f=118
b=f+2            t=m+1

f+2+f=m+1+m-49
2f+2=2m-48
2f-2m=-48-2
2f-2m=-50
2f+2m=118  se obtine un sistem iar prin adunare ne da

4f/=68  f=17    b=19

2*17-2m=-50
34-2m=-50
-2m=-84
m=42    t=43