Crystal Reports Compare Groups

Message

     I have 2 groups 
Teacher (GF1)
Gender (GF2)
I need to display highest group name and average grades for each teacher by Gender.  For example:

Student  Gender    Test1   Test2  Test3
A              M            90         50      60
B              M             80         90      70
C              F             60         80     80  
D              F             100       70     80

Expected Result
Test 1  M 85
Test 2  F 75
Test 3  F 80

Any help would be appreciated.