Question

Maria si Andrei au impreuna 136 de baloane, Andrei si Bogdan au 110 baloane, Maria si Bogdan au amandoi 170 de baloane. Cate baloane are fiecare copil?

Answer 1

Răspuns:

M+A=136 b

A+B=110 b

M+B= 170 b

2M+2A+2B=416b

2(M+A+B)= 416

M+A+B= 416:2

M+A+B = 208

136+B=208

B=206-136=70

A+70=110

A=110-70=40

M+70=170

M= 170-70=100

Bogdan are 70 de baloane .

Andrei are 40 de Baloane .

Maria are 100 de Baloane .