A shopkeeper expects a gain of 22.5% on his cost price. If in a week, his sale was of Rs. 392, what was his profit?	Choose the correct choice from the following options:  A) Rs. 18.20  B) Rs. 70  C) Rs. 72  D) Rs. 88.25  E) None of these
Explanation :   Let the C.P. of items sold in a week be Rs. x   So, Rs. 392 = x + 22.5% of x   =&gt; (122.5/100)*x = 392   =&gt; x = 392∗100/122.5 = 320   So, the profit = Rs. (392-320) = Rs. 72   Answer : Rs. 72
<result>C</result>
A shopkeeper expects a gain of 22.5% on his cost price. If in a week, his sale was of Rs. 392, what was his profit?