Mathematics · Data Interpretation

Based on the table below showing the profit percentage earned by five shopkeepers (S1 to S5) on five items (A to E) with their selling prices in brackets: ShopkeeperA (Rs. 2400)B (Rs. 2200)C (Rs. 3000)D (Rs. 4500)E (Rs. 1800)S1a%7%6%4.75%3.5%S23.5%4.25%15%4.8%5%S36%4%b%8%5.2%S410%3.75%5.5%3.4%12%S55.5%4.2%4%5%c% If the cost price of item A for shopkeeper S1 is equal to the cost price of item C for shopkeeper S3, and the ratio of a to b is 2 : 3, find the cost price of item A for shopkeeper S1.