RE: Maths Brain Teasers 108 :: Can You - Complete the Pyramid?

My answer is 10
the sum of the numbers of the levels decreases by 1 as you go up the pyramid
1+1+2+2+2+2+2+2+1+1=14
1+2+2+3+2+2+1=13
2+2+4+2+2=12
3+5+3=11
10 for the summit