what is their ages?

Question

The ages of Edna Ellie and Elsa are consecutive integers. The sum of their ages is 111. What is their ages?

Answer 1

So you can think of the first integer as 'x', the second integer as 'x+1', and the third integer as 'x+2'. You can add these together and set them equal to 111. Example:

x+x+1+x+2=111

 

Now combine like terms and solve for 'x':

3x+3=111

    -3     -3

3x=108

/3     /3

 

x=36

 

The three consecutive integers are: 36,37,38

 

You can check this by adding those three numbers together and they will total 111.