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OpenStudy (goformit100):
In a 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 are there in the family ? A. 2 B. 3 C. 4 D. 5
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OpenStudy (goformit100):
@Noemi95
OpenStudy (anonymous):
B.3 Let d and s represent the number of daughters and sons respectively Then, we have : d - 1 = s and 2 (s - 1) = d. Solving these two equations, we get: d = 4, s = 3.
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