Problem
First name
Oliver West
School
Beechwood Park School
Country
Age
13
You have to reach five steps so the combinations are:
1 = 1 step
2 = 2 step
11111
1112
1121
1211
2111
122
212
221
There are 8 combinations so the answer is 8 if one can only do 1 and 2 steps.
If they can do 3 steps as well:
11111
1112
1121
1211
2111
122
212
221
131
113
311
There are 11 combinations so the answer is 11 if one can only do 1, 2 and 3 steps.