49) P,Q,R,S,T,U are 6 members of a family in which there are two married couples. T, a teacher is married to a doctor who is mother of R and U. Q the lawyer is married to P.P has one son and one grandson. Of the two married ladies one is a housewife. there is also one student and one male engineer in the family. Which of the following is true about the grand-daughter of the family?
445) Six persons are seen together in a group. They are A, B, C, D, E and F, B is brother of D, but D is not brother of B. F is brother of B, C and A are married together. F is son of C, but C is not mother of F. E is brother of A. The number of female member in the group is