A man buys 3 cows and 18 goats in ₹ 47,200. Instead if he would have bought 8 cows and 3 goats, he had to pay ₹ 53,000 more. Cost of one cow is:

• ₹ 10,000
• ₹ 11,000
• ₹ 12,000
• ₹ 13,000