Question 755601: Katy is 4 yrs older than her brother Brian and Chloe is 3 yrs younger than Brian. the sum of the ages of Brian, Chloe and Katy is 40 Answer by Cromlix(4381) (Show Source):
You can put this solution on YOUR website! Brian = x
Katy = x + 4
Chloe = x - 3
x + (x + 4) + (x - 3) = 40
3x + 1 = 40
3x = 40 - 1
3x = 39
x = 13
Brian is 13 yrs old
Katy is 17 yrs old.
Chloe is 10 yrs old.
Proof:
13 + 17 + 10 = 40
40 = 40
Hope this helps
:-)