The sale price of a trolley bag including the sale tax is Rs. 280. The rate of sale tax is 12% . If the shopkeeper has made a profit of 25%, the cost price of the trolley bag is:	Choose the correct choice from the following answers.
A) Rs 200  B) Rs 220  C) Rs 260  D) Rs 280  E) None of these
Explanation :   112% of S.P. = 280   S.P. = Rs.(280x 100/112) = Rs.250.   C.P. = Rs (100/125x 250) = Rs 200   Rs 200nswer : Rs 200
<result>A</result>
The sale price of a trolley bag including the sale tax is Rs. 280. The rate of sale tax is 12% . If the shopkeeper has made a profit of 25%, the cost price of the trolley bag is: