A shopkeeper allows 10% discount on his marked price. If the cost price of an article is Rs. 2400 and he has to make a profit of 20%, then his marked price must be
1
Rs. 3200
2
Rs. 1200
3
Rs. 2400
4
Rs. 2880
A shopkeeper allows 10% discount on his marked price. If the cost price of an article is Rs. 2400 and he has to make a profit of 20%, then his marked price must be