wrote:
Col A Col B
11 1
11 1
12 1
11 2
13 2
11 1

I need a answer of three. If column a =11 i need it to
count column b [...] using excel 2010.

You need to count __what__ in column B when column A is 11?

I am guessing you want to count when B is 1, since you expect 3 to be the
answer.

If you not require Excel 2003 compatibility, try:

=COUNTIFS(A1:A6,11,B1:B6,1)

If you require Excel 2003 compatibility (saving the file as ".xls"), try:

=SUMPRODUCT((A1:A6=11)*(B1:B6=1))