A shop, which sold same marked price shirts, announced an offer - if one buys three shirts then the fourth shirt is sold at a discounted price of ₹100 only. Patel took the offer. He left the shop with 20 shirts after paying ₹20,000. What is the marked price of a shirt?
Let marked price of 1 shirt be P.
Price of 4 shirts = 3P+100
It is given that 20 shirts cost Rs.20,000.
So, 4 shirts cost Rs.4,000.
3P + 100 = 4000
3P = 3900
P = 1300
The correct option is B.