The marked price of a book is Rs. 1,140. The retailer marks the price of a good in such a way that he gains 14% after giving a discount of 20%. The cost price of the book is ________
1
Rs. 800
2
Rs. 600
3
Rs. 550
4
Rs. 750
The marked price of a book is Rs. 1,140. The retailer marks the price of a good in such a way that he gains 14% after giving a discount of 20%. The cost price of the book is ________