Question

Zach can buy a dozen pencils for $1.89, 24 pencils for $3.60, or 36 pencils for $5.49. What is the best buy?

Answer 1

To know which one is the best option we have to divide the cost in the number of pencils so:

`(1.89)/(12)=0.16`

the second option is:

`(3.60)/(24)=0.15`

the thert option is:

`(5.49)/(36)=1.16`

So the best option is the second option