+0  
 
0
38
1
avatar

A girl has as many brothers as sisters, but each brother has only half as many brothers as sisters. How many brothers and sisters are there in the family?

 Apr 17, 2020
 #1
avatar
+1

B=Brothers,  S=Sisters

 

S - 1 =B,   B - 1=1/2S, solve for B, S

 

B = 3 Brothers  and  S = 4 Sisters

 

3 + 4 = 7 Brothers and Sisters

 Apr 17, 2020

41 Online Users

avatar
avatar
avatar
avatar