Question 893475:  Karen is 6 years older than her sister Michelle, and Michelle is 2 years younger than their brother David. If the sum of their ages is 62 , how old is Michelle? 
 Answer by ankor@dixie-net.com(22740)      (Show Source): 
You can  put this solution on YOUR website! Karen is 6 years older than her sister Michelle, 
k = m + 6 
: 
 and Michelle is 2 years younger than their brother David. 
m = d - 2 
or 
d = m + 2 
: 
 If the sum of their ages is 62 , how old is Michelle? 
k + m + d = 62 
replace k and d 
(m+6) + m + (m+2) = 62 
3m + 8 = 62 
3m = 62 - 8 
3m = 54 
m = 54/3 
m = 18 yrs is M's age 
: 
: 
You can confirm this yourself, find the ages of k and d, check the total 
  | 
 
  
 
 |   
 
 |