The sale price of a trolley bag including the sale tax is Rs. 1120. 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 1000
B) Rs 1515
C) Rs 800
D) Rs 900
E) None of these
Explanation :   112% of S.P. = 1120   S.P. = Rs.(1120x 100/112) = Rs.1000.   C.P. = Rs (100/125x 1000) = Rs 800.   Answer : Rs 800
<result>C</result>
The sale price of a trolley bag including the sale tax is Rs. 1120. The rate of sale tax is 12% . If the shopkeeper has made a profit of 25%, the cost price of the trolley bag is: