David purchased some cookies at the cost of 5 for $4 and sold them at 4 for $5. David made a profit of $180 in total. How many c

Question

3 years ago

15

ookies did David purchase to make that much money?

1 answer:

horsena [70] · Answer 1 · 2022-03-21T05:28:20+03:00

David purchased some cookies at the cost of

5 for $4 (5/4=1.25) and

sold them at 4 for $5(4/5=0.80).

To find cost per cookie subtract 1.25-0.80=0.45

David made a profit of $180 in total ( divide profit per cookie cost: 180/0.45= 400)

How many cookies did David purchase to make that much money?

He needed to make 400 cookie to make the profit of $180.