Răspunsuri

2014-04-24T19:05:18+03:00
T+m+f+b=87 ani
t=m+5
f=m/2
b=m/2-2
m+5+m+m/2+m/2-2=87
m+m+2m/2=87+2-5
2m+2m/2=84
2m+m=84
3m=84
m=84/3
m=28  mama are 28 ani
t=28+5
t=33 ani  tata
f=28/2
f=14 ani  fata
b=14-2
b=12 ani
m+t+b+f=87ani
33+28+14+12=87