Question

maria si ana au economisit 66 lei, ana si toma au economisit 60 lei ,iar mariea si toma au economisit 54 lei. afla ce suma de bani a economisit fiecare copil? va rog si schema.

Answer 1

M+A =66
A+T =60
M+T=54

M+A + A+T + M+T =66+60+54
2M+2A+2T =180
2(M+A+T ) =180
M+A+T =180 : 2 =90
M+A =66
66+T =90
T =90-66 =24 lei

A+T =60
A+24 =60
A =60-24 =36 lei

M+T =54
M +24 =54
M =54-24 =30 lei