sumproduct or sumif formula help

[ferde]

I wonder if someone could tell me which formula to use to do the following:

A1= the sum of the yes responses from each sales rep in a quarter (Jan-Mar)

Month SalesRep Response
Jan John No
Feb John Yes
Mar Bill Yes
Apr John No

Answer = 1 yes response for JOHN in the first quarter (jan-Mar)

Answer = 1 yes response for Bill in the first quarter

I am using name ranges .i.e Month SalesRep Response

Thank you in advance for any help you can provide
Ferde

 

[Bob Phillips]

=SUMPRODUCT((ISNUMBER(MATCH(B1:B10,{"Jan","Feb","Mar"},0)))*(C1:C10="John")*(D110="Yes"))

--
HTH

Bob

(there's no email, no snail mail, but somewhere should be gmail in my addy)

 

[BoniM]

=SUMPRODUCT((B2:B11={"Jan","Feb","Mar"})*(C2:C11="John")*(D211="Yes"))

 

[ferde]

THANK YOU IT WORKS GREAT

=SUMPRODUCT((ISNUMBER(MATCH(B1:B10,{"Jan","Feb","Mar"},0)))*(C1:C10="John")*(D110="Yes"))

--
HTH

Bob

(there's no email, no snail mail, but somewhere should be gmail in my addy)

 

[ferde]

THANK YOU THIS WORKS GREAT TOO.

=SUMPRODUCT((B2:B11={"Jan","Feb","Mar"})*(C2:C11="John")*(D211="Yes"))