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You are a male and you have three brothers and three sisters. Each of your sisters has two sisters and 4 brothers. There are four boys and three girls in the family. (Warning : algebraic solution!) For you as a male sibling, B (boys) = S (girls).

For any of your sisters , B+1 = (S-1)/2.

Solving the equations simultaneously, S-2=1, and S=3, B=3.

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2009-05-29 23:10:06
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Q: I have as many brothers as sisters but each of my sisters has only half as many sisters as brothers How many brothers and sisters are there in my family?
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