Question

daca 4 kg de nectarine si 6 kg de piersici costa 48 de lei,iar 3 kg de nectarine si 9 kg de piersici costa 54 de lei,afla cat costa 1 kg de nectarine si cat costa un kg de piersici

Answer 1

4 kg nec. ........6 kg pier. ...........48lei    x3

3kg nec. ..........9 kg pier. ..........54lei    x4

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12kg nec. ........18kg pier. ............144lei

12kg nec. ........36kg pier. ............216lei

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/ .........................18kg pier. ............. 72lei

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72:18=4lei(un kg piersici)

4x9=36lei(9 kg de piersici)

54-36= 18lei(coste 3 kg de nectarine)

18:3=6lei(un kg de nectarine)