Solution

158653

First name
Jessica Fynlay Zuzanna
School
Nene valley primary school
Country
Age
9

We noticed that ,if that if they last less than one year they will need 66 candles. In the sum each time you count down from 10 to 0 e.g:from 21 we needed to add 9 to get to 30 then you add 8 to get to 38 and so on
11+10=21
21+9 =30
30+8=38