Question

8 kg de portocale plus 5 kg de banane= 57lei....4 kg portocale plus 7 kg banane =51 lei.Cat costa 1kg de banane si 1 kg de portocale?

Answer 1

8kg portocale+5 kg banane=57 lei

4 kg p + 7 kg b=51 lei /x2

8P+5b=57

8p+14b=102

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9b=45

b=5 lei kg de banane

8p+5x5=57

8p=57-25

8p=32

p=4 lei kg de portocale