Age problem

by casi
(pueblo)

Janet and younger brother Jared are 5 years apart. In age the sum of their ages is 13. How old is each.

Trial and error

13 = 12 + 1 The difference is 11

13 = 11 + 2 The difference is 9

13 = 10 + 3 The difference is 7

13 = 9 + 4 The difference is 5

So they must be 9 and 4 years old.

Since Jared is the younger brother, he is 4.

Then, Janet is 9

















































































































































































































































Click here to post comments

Join in and write your own page! It's easy to do. How? Simply click here to return to Basic math word problem.





New math lessons

Your email is safe with us. We will only use it to inform you about new math lessons.


Page copy protected against web site content infringement by Copyscape

Recent Articles

  1. Calculate the Harmonic Mean

    Jan 13, 17 01:28 PM

    What is the harmonic mean? How to calculate the harmonic mean?

    Read More