Răspuns:
1/3 1
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1/3 1
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1/3 1
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5
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1. Cate oua a luat al 3 cumparator ?
(5+1):2=3
3+1=4 oua
2. Cate oua a luat al 2 lea cumparator ?
(9+1):2=5
Cate oua a cumparat primul cumparator?
(15+1):2=16:2=8
8+1=9 oua
Cu cate oua s-a dus bunica la piata ?
5+4+6+9=24 oua