Anu earns a profit of 18% by selling an article at a certain price. If she were to sell it for ₹10.50 more, she would have gained 25%. The original cost price of 12 such articles is (in ₹):
Show Hint
When solving profit-related problems, use the profit percentage formula:
\[
\text{Profit} = \frac{\text{Selling Price} - \text{Cost Price}}{\text{Cost Price}} \times 100
\]
Let the cost price of the article be \( C \) and selling price be \( S \).
From the information, the profit percentage can be used to form equations. Solve the system of equations to find the cost price \( C \), and then calculate the total cost for 12 articles.