Question

Teodora Paula si Sonia au 33 de narcise. Diferenta dintre narcisele primelor doua fete este aceasi ca diferenta ultimelor doua fete.Cate narcise are paula

Answer 1

t+p+s=33
t-p=p-s=>t=p-s+p=>t=2p-s
2p-s+p+s=33
3p=33=>p=33:3=>p=11 narcise are Paula

Answer 2

T+P+S=33 =>P=33-T-S
T-P=P-S =>T-2P+S=0 =>P=(T+S)/2

33-T-S=(T+S)/2
66-2T-2S=T+S
66=3T+3S sau T+S=22 =>P=11