Ratio Question 2 with Solutions Earlier in the week I went over my method for setting up a ratio, and I gave you three ratio problems to try on your own. You can see that post here: Setting Up a Ratio Today I would like to give a solution to the second of those three ratio problems. You can see solutions for the first problem here: Ratio Question 1 with Solutions. Problem 2: A copy machine makes 4800 copies per hour. At this rate, in how many minutes can the copy machine produce 920 copies? Solution: We identify 2 key words. Let’s choose “copies” and “minutes.” copies 4800 920 minutes 60 x At first glance it might seem to make more sense to choose “hours” as our second key word, but choosing the word “minutes” is more efficient because The answer that we’re looking for must be in minutes. It’s extremely simple to convert 1 hour into 60 minutes. We now find x by cross multiplying and dividing. 4800/60 = 920/x 4800x = 55200 x = 11.5 So, the answer is 11.5. ⋅ * Quick computation: (920/4800) ⋅ 60 = 11.5. More Problems with Explanations If you are preparing for the SAT, ACT, or an SAT math subject test, you may want to take a look at the Get 800 collection of test prep books. And if you liked this article, please share it with your Facebook friends: Comments comments