More Lessons for Algebra
What are age word problems in algebra?
Age problems are algebra word problems that deal with the ages of people currently, in the past or in the future.
If the problem involves a single person, then it is similar to an Integer Problem. Read the problem carefully to determine the relationship between the numbers. This is shown in the following example involving a single person.
If the age problem involves the ages of two or more people then using a table would be a good idea. A table will help you to organize the information and to write the equations. This is shown in the age problems: examples involving more than one person.
How to solve age word problems?
Age Problems Involving A Single Person
Five years ago, John’s age was half of the age he will be in 8 years. How old is he now?
Step 1: Let x be John’s age now. Look at the question and put the relevant expressions above it.
Step 2: Write out the equation.
Isolate variable x
Answer: John is now 18 years old.
The following video shows more examples of age word problems
1) In 4 years, Ali will be 3 times as old as he is today. How old is Ali today?
2) Nazrat is 4 years older than Unama. 2 years ago, Nazrat was 5 times as old as Unama. How old is Nazrat today?
Age word problem, Linear equations, Algebra I
Example: In 40 years, Imran will be 11 times as old as he is right now. How old is he right now?
Example: William is 4 times as old as Ben. 12 years ago, William was 7 times as old as Ben. How old is Ben now?
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