If the selling price of 40 items is equal to the cost price of 50 items, then what is the percentage profit?

✅ Solution:

Let cost price (CP) of one item = C
Then CP of 50 items = 50C

Given:
Selling price (SP) of 40 items = 50C

So, SP of one item:
$ \frac{50C}{40} = 1.25C $

Profit per item = SP − CP = $1.25C - C = 0.25C$

Profit %:
$ \frac{0.25C}{C} \times 100 = 25% $

✅ Final Answer:

25% ✔️