Question

veverita Rita se pregateste pentru iarna. Ea isi aduna alune timp de 4 zile.In prima zi a adunat 9 alune. A doua zi a adunat triplul numarului de alune din prima zi,a treia zi cu 3 alune mai multe decat in in a doua zi ,iar in a patra zi cat in primele trei zile la un loc. Cate alune are veverita Rita.

Answer 1

prima zi-9 alune
a doua-9•3=27 alune
a treia zi -=27+3=30 alune
a patra zi-30+27+9=66
66+30+27+9=132 de alune a adunat in total!

Answer 2

9+(9x3)+(9x3+3)+(9+9x3+9x3+3)=132alune
9+27+(27+3)+(9+27+27+3)=132alune
36+30+(36+30)=132alune
66+66=132alune