A manufacturer sells an item to a wholesaler and makes a profit of 10%. The wholesaler sells the same item to a retailer at a profit of 12% .The retailer sells the same item to a customer at a profit of 15%. If the customer paid ₹21,252 for the item, then what was the cost price (in ₹) of the item for the manufacturer?
1
18,000
2
15,000
3
12,500
4
17,500