A client needs to apply 1 inch of a medication topically 4 times a day. Each tube of medication has 12 applications. How many tubes of the medication will the client need for a week?
1. 2
2. 2 1/4
3. 2 1/2
4. 2 2/3
4
Rationale 1: Tubes/week = 1 tube/12 applications x 4 application/day x 7 day/1 week. Multiply the numerator (1 x 4 x 7 = 28). Multiply the denominators (12 x 1 x 1 = 12). 28/12 = 2.33 (33/100= 2/3) = 2 2/3.
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