Question

G+I=100capete si 240picioare g=?

Answer 1

g + i = 100   ( g = gaini;  i = iepuri )

2 × g + 4 × i = 240

      g +     i   = 100   l   x 2

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2 × g + 4 × i = 240

2 × g + 2 × i = 200

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/          2 × i = 40

40 : 2 = 20 iepuri

100 - 20 = 80 gaini

V:   80 × 2 + 20 × 4 = 160 + 80 = 240 picioare