Both the formula's do not work i need to know how many 1's have a's

"Fahad Farid Ansari" wrote:

I have a question regarding countif formula. I have two columns have value a
b c d in first and in second column i have 1 2 3 4 5 now i want a formula
that could tell me how many a are there that have 1
=countif(A1:A5, "=1") and (b1:b5,"=a") the formula would be something like
this can anybody help