The cost price of the two articles is the same. One article among them is sold at a profit of 15% and the other is sold at a profit of 12%. if the difference between their selling prices is ₹18, what is the cost price of each article?

₹600

Profit of first = 5%

Selling price of first article = 105

Profit on selling second article = 3%

Selling Price of second article = 103%

Difference = 105 - 103 = 3%

3% of CP = 18

100% of CP = 600