Question

(i) in a family of six persons a, b, c, d, e and f, there are two married couples. (ii) d is grandmother of a and mother of
b. (iii) c is wife of b and mother of f. (iv) f is the grand daughter of
e. how many male members are there in the family ?

Answer 1

See,
Since D is grandmother of A,she is female.
Since C(mother of A and F) is wife of B,she is female.
Since,F is grand daughter of E(husband of D),she is female. 
Hence,3 of the members are female namely D,F,C.