Solution

39056

Problem / game
First name
Javid Donathan Fellows
School
Banstead Community Junior School
Age
11

Solution for highest number of Brush Loads needed:

4n+1.

Explanation:

Highest number of Equation examples:
Brush Loads
5 cubes: 21 (5 cubes x 4)+ 1 = 21 Brush Loads.
6 cubes: 25 (6 cubes x 4)+ 1 = 25 brush Loads.
7 cubes: 29
8 cubes: 33
9 cubes: 37 And so forth.