Question

The cost of 100 eggs equals the selling price of 80 eggs. What is the percentage profit?

Answer 1

Step-by-step explanation:

Cost price of 1 egg = x

Cost price of 100 eggs = 100x

Cost price of 100 eggs = Selling Price of 80 eggs = 100x

Cost price of 80 eggs = 80x

We can see Selling Price of 80 eggs is greater than Cost price of 80 eggs

Therfore, profit is incurred

$profit\% = \frac{profit}{cost \: price} \times 100$

$profit\% = \frac{(selling \: price - cost \: price)}{cost \: price} \times 100$

$= \frac{(100x - 80x)}{80x} \times 100$

$= \frac{20x}{80x} \times 100$

$= \frac{1}{4} \times100$

$= 25\%$