The answer is 40. Given that A = 1, B = 2, C = 3, D=4, E=5, F=6 and so on....
BAD = 10 : 2 + 1 + 4 + (3)
DAC = 11 : 4 + 1 + 3 + (3)
CGI = 22 : 3 + 7 + 9 + (3)
The term (3) that is necessary could be the number of letters in the equation.
Therefore,
OCCAM = 15 + 3 + 3 + 1 +13 + (5) = 40 (5, using number of letters)