Question
Magnus buys 10 pencils for $4 at store A and 15 pencils for $5. Of the two stores, the best unit rate to buy pencils is ________.
- 2.5
- 1.0
- 3.2
- 4.5
The correct answer is: 2.5
In the question we were given that in store A 10 pencils cost $4 and in store B 15 pencils cost $5
and asked to find best purchase for one pencil
In store A 10 pencils cost = $ 4
1 pencil cost = 4/10 = $0.4
In store B 15 pencils cost = $5
1 pencil cost = 5/15 = $ 0.33
From comparing both unit prices we can see it is best purchase in store A i.e; $ 0.4
Related Questions to study
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