Răspuns :
l_____l_____l+13
l_____l }124
Obtinem doar parti egale: 124-13=111
Numarul partilor egale: 2+1=3
Suma cheltuita a doua zi: 111:3=37 (lei)
Suma cheltuita in prima zi: 37×2+13=74+13=87 (lei)
R. 87 lei; 37 lei
l_____l }124
Obtinem doar parti egale: 124-13=111
Numarul partilor egale: 2+1=3
Suma cheltuita a doua zi: 111:3=37 (lei)
Suma cheltuita in prima zi: 37×2+13=74+13=87 (lei)
R. 87 lei; 37 lei
a+b=124
a:b=2 rest 13 =>a=2b+13
2b+13+b=124
3b=124-13
3b=111 =>b=37
a+37=124 =>a=87
a:b=2 rest 13 =>a=2b+13
2b+13+b=124
3b=124-13
3b=111 =>b=37
a+37=124 =>a=87