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 Math Central Quandaries & Queries
 Question from Kenneth: Hello: Can you think of a ratio that has units that have not canceled out? Do not use a rate as an example, for example miles per hour. Would the following make sense? What is the book to student ratio in a classroom with 20 students and 15 books? Student to book ratio of 20 students to 15 books or (4 students):(3 books). I thank you for your reply.

HI Kenneth,

Sam worked for 8 hours and made $\$120.00\$ so the ratio of dollars per hour is