A man bought a watch for 12% discount. If he had bought it for 24% discount, he would have got the watch for ₹2400 less. The marked price of the watch is:

₹30,000 ₹22,500 ₹20,000 ₹25,000

₹20,000

Difference between two discounts =  24 - 12 = 12% If, 12% of MP = 2400  Then, 100% of MP = ₹20,000