In sareen family each daughter has the same number of brothers as she has sisters and each son has twice as many sisters as he has brothers
How many sons does the sareen family have?
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Let d = number of daughters S = number of sons
From condition 1 =>. b-1=s -------(1)
From condition 2 => 2(s-1)=d----(2)
Solving both equations
D=4 s=3
Hence answer is 3