How many cakes does Johnny have to sell to make the $600 back?

Question

Johnny makes cakes on the weekends, For every cake Johnny makes he spends $2 on ingredients, and sells every cake for $10. But he had to spend $600 on pans and stuff before he even started. How many cakes does he have to sell to make his $600 back?

Answer 1

So since Johnny spends 2$ to make 10$, his profit (earnings) on each cake is $8. To see how may cakes it takes before he earns $600 back, you would divide 600/8.

Johnny has to sell 75 cakes to earn back his original 600$ investment.