Răspuns :
T+P=40, T=12+P, 12+P+P=40, 2P=40-12, 2P=28, P= 14 ANI PIT , T= 12+14=26 ANI TIP
1+3x13=1+39=40 de ani au impreuna
a+a+12=40
2a=40-12
2a=28
a=28:2=14 ani are Pit
14+12=26 ani are Tip
26+14=40
a+a+12=40
2a=40-12
2a=28
a=28:2=14 ani are Pit
14+12=26 ani are Tip
26+14=40