Răspuns :
8·9=72 (pui)
8+8=16 (porumbei in 2 custi)
72+72=144 (pui in 2 custi)
(in total) 144+16=160
8+8=16 (porumbei in 2 custi)
72+72=144 (pui in 2 custi)
(in total) 144+16=160
Cati porumbei si pui sunt in doua custi ?
(8 + 8x9) x 2 = (8 + 72) x 2 = 80 x 2 = 160
____________________________________
(8 + 8x9) x 2 = (8 + 72) x 2 = 80 x 2 = 160
____________________________________