Question

Daca 2 kg de mere si 3 kg de pere costa 26 de lei,iar 1 kg de mere si 1 kg dr pere costa 10 lei afla cat costa 1 kg de mere si 1 kg de pere​

Answer 1

2m+3p=26

m+p=10 =>m=10-p

2(10-p)+3p=26

20-2p+3p=26

p=6 lei

m=4 lei

unde m=kg mere

p=kg pere