Lynn and Carrie

Question

Lynn is 1 year younger than 3 times Carrie's age. If Lynn is 11 years old, how old is Carrie?

Answer 1

let x = Carrie's age

 

then Lynn's age = 3x - 1

 

but, Lynn's age was given as 11, so

 

11 = 3x - 1; 12 = 3x

 

when we solve for x, we get 4