Question
There are 8 members (D, E, F, G, H, I, J, and K) and 2
married couples in a family. No single person in the family is a parent. K is only daughter of D. D is married to E. I is brother-in-law of H. E is grandfather of F, who has one brother. K is mother of G. F is nephew of J. I and J are unmarried. How many male members are there in a family?Solution

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