Question

ABC Electronics sells an 8 pack of AA batteries for $4.80. Better Batteries sells a pack of 15 AA batteries for $10.20. Which store has the better deal? What is the difference in cost per battery? Show or explain your answer.

Answer 1

we are given two cases

ABC Electronics:

total number of AA pack of batteries = 8

total cost price =$4.80

cost per battery = (total cost price)/(total number of AA pack of batteries)

cost per battery =$\frac{4.80}{8} =0.6$

Better Batteries:

total number of AA pack of batteries = 15

total cost price =$10.20

cost per battery = (total cost price)/(total number of AA pack of batteries)

cost per battery =$\frac{10.20}{15} =0.68$

We always look for lesser cost

so, ABC Electronics deal is better

Difference in cost per battery =0.68-0.60

Difference in cost per battery =$0.08..........Answer