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My daughter has as many sisters as brothers. Each of her brothers has twice as many sisters as brothers. How many sons and daughters do I have?

 Feb 1, 2021

Best Answer 

 #1
avatar+32312 
+3

Let b = boys and g = girls

 

b = g-1     the number of boys is one less than the number of girls

g = 2(b-1)     a brother has b-1 brothers.and twice as many sisters

 

You now have two equations for two unknowns.  Can you take it from here?

 Feb 1, 2021
edited by Alan  Feb 1, 2021
edited by Alan  Feb 1, 2021
 #1
avatar+32312 
+3
Best Answer

Let b = boys and g = girls

 

b = g-1     the number of boys is one less than the number of girls

g = 2(b-1)     a brother has b-1 brothers.and twice as many sisters

 

You now have two equations for two unknowns.  Can you take it from here?

Alan Feb 1, 2021
edited by Alan  Feb 1, 2021
edited by Alan  Feb 1, 2021

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