Practice Rates in Math
Use these practice problems to test your method after reviewing the concept explanation and worked examples.
Quick Recap
A rate is a ratio that compares two quantities measured in different units, expressing how much of one quantity corresponds to a given amount of another. It is often written as 'per' one unit of the second quantity, such as miles per hour or dollars per pound.
60 miles per hour tells you how many miles you travel for each hour — it compares distance to time.
Example 1
easyA car travels 240 miles in 4 hours. What is its speed as a unit rate in miles per hour?
Example 2
mediumPrinter A prints 180 pages in 3 minutes and Printer B prints 260 pages in 4 minutes. Which printer is faster?
Example 3
easyA typist types 420 words in 7 minutes. What is the unit rate in words per minute?
Example 4
hardJuice costs \3.84 for 16 fl oz or \5.10 for 30 fl oz. Which is the better deal per fluid ounce?