Question

simona si bogdan au împreună 80de puncte la un joc cate puncte are fiecare copil daca simona are de 3 ori mai multe puncte decat bogdan

Answer 1

s+b=80
s=3b
4b+b=80
b=80:4=20 puncte are Bogdan
s=3x20=60 puncte are Simona

Answer 2

a+b=80 a=b×3 a=3b 3b+b=80 4b=80 b=80÷4 b=20 (Bogdan) a+20=80 a=80-20 a=60 (simona) 60+20=80