Răspuns :
9X3=27 alune a adunat in a 2-a zi
27+3=30 alune a adunat in a treia zi
9+27+30=66 alune a adunat in a patra zi
9+27+30+63=129 alune a adunat in cele 4 zile
27+3=30 alune a adunat in a treia zi
9+27+30=66 alune a adunat in a patra zi
9+27+30+63=129 alune a adunat in cele 4 zile
9x3=27(alune adunate in a ll-a zi)
27+3=30(alune adunate in a lll-a zi)
27+30+9=66(alune aduante in a lV-a zi)
27+3=30(alune adunate in a lll-a zi)
27+30+9=66(alune aduante in a lV-a zi)