... there are three components 1,2, 4
( 1,2 both belong to ... same group so lets say 1+2=3 )
now they ... 3 has two components 1, 2 and they have also ... comparison of 1,2,4 they are saying 1 has less ... east
1=young male 2 =old male 3=1+2 (all male)< ...