GypsyChick
0
"Cube" is 100 blocks
Top layer is 16
2nd layer is 2 more 18
3rd layer is 3 more than 2nd 21
4th layer is 4 more than 3rd 25
16 +18 +21 +25 =80
100 - 80 =20
Missing row =25
Answer is 45
http://forum.univoxcommunity.com/dis...ity-tuesday/p2