Joe sells cookies for 20% more than it costs to make them. If he sold 50 cookies and earned $60, how much do the cookies cost to make?
A step-by-step solution is:
1
He sold the cookies for $1.

20 each because 60 / 50 = 1.

2.

They cost $1 to make because 1.

2 / 1.

2 = 1.

.

Final answer: 1