Counting two columns with specific criteria

R

rjre

In column A I have a list of FIRST names and in column B I have a list
of LAST names.

How can I count the number of people with "SMITH" as the LAST name
ONLY if they have "BOB" as a FIRST name?

I have a tried a few things but have got a bit of brain freeze...

Any suggestions?

Thanks

Richard
 
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