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8kg mere.......24lei
5kg mere.......?lei


Răspuns :

[tex]8 \: kg \: mere..... \: 24 \: lei \\ 5 \: kg \: mere..... \: x \: lei[/tex]

[tex]x = \frac{5 \times 24}{8} = \frac{120}{8} = \frac{60}{4} = \frac{30}{2} = 15 \: [/tex]

[tex]x = 15 \: lei[/tex]
8 kg mere............. 24 lei
5 kg mere............. x lei
8/5=24/x=> x=5×24/8=> x=15 lei