Question 1144252
A file cost $1.20 more than a notebook. A pen cost twice as much as the file. Te total cost of the three items was $11.60. What was the cost of the file?
<pre>It's best to try to solve these word/story problems with ease, and in as little time as possible. Time is of the essence, especially when doing an exam, quiz, etc.
Let the cost of the FILE be F
Then the notebook costs F - 1.2, and the pen costs 2F
With total cost being $11.60, we get: F + F - 1.2 + 2F = 11.6
                                      4F = 12.8
                                      Cost of a file, or {{{highlight_green(matrix(1,5, F, "=", 12.8/4, "is:", "$3.20"))}}}
Now, was that SIMPLE, or what?