Question

timp de o saptamana o veverita a adunat alune. luni a adunat 5 alune, iar in zilele urmatoare cu cate doua in plus fata de ziua precedenta. cate alune a adunat in total?

Answer 1

luni=5 alune
marti=5+2=7 alune
miercuri=7+2=9 alune
joi = 9+2=11 alune
vineri=11+2=13 alune
sambata=13+2=15 alune
5+7+9+11+13+15=60 alune in total intr-o saptamana

Answer 2

5+7+11+13+15+17
5+ (5+2)+(5+2+2)+(5+2+2+2)+(5+2+2+2+2)+(5+2+2+2+2+2)+(5+2+2+2+2+2+2)