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Cristian a cumparat :1kg de carne,1kg de zahar, 1/2 kg gris, 1/4 kg de cafea boabe si 6 pachete de biscuiti.Cate grame cantareste un pachet de biscuiti,daca sacosa plina cantareste 3.775g, iar sacosa goala are 125g?

Răspuns :

1000 g carne+1000 g zahar+500 g gris+250 g cafea+6x g biscuiti+125 g sacosa=3775 g sacosa plina, unde x g are un pachet de biscuiti

2875 g+6x=3775 g
6x=3775-2875
6x=900
x=150 g are un pachet de biscuiti