Răspuns :
Cate timbre are Miruna? 9
Cate timbre are Rodica? (nr. timbrelor Mirunei ×3)9×3=27 timbre
Cate timbre au fetele in total? ( nr. timbrelor Mirunei + nr. timbrelor Rodicai ) 9+ 27= 36 timbre
Răspuns:
(9×3)+9=27+9=26 timbre au fetele in total