Solving An Age Problem with Basic Math
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.
Sep 17, 20 03:57 PM
Learn clearly the difference between discrete and continuous data with good examples.
New math lessons
Your email is safe with us. We will only use it to inform you about new math lessons.