Kanchan sold 153 chairs and made a profit equal to the selling price of 78 chairs. What is her profit percentage?

Solution:

Let selling price of 1 chair = SP

Selling price of 153 chairs = $153SP$
Profit = selling price of 78 chairs = $78SP$

Cost price:
$CP = 153SP - 78SP = 75SP$

Profit %:
$\frac{78SP}{75SP} \times 100 = 104%$

✅ Final Answer: 104%