A shopkeeper expects a gain of 22.5% on his cost price. If in a week, his sale was of Rs. 539, what was his profit?  Select.
A) s. 64 B) s. 99 C) s.72 D) s.75 E) s.90
C.P. = Rs. (100/122.5)x539   = Rs. (1000/1225)x539   = Rs. 440   Profit = Rs. (539 - 440) = Rs. 99.   Answer:s. 99
<result>B</result>
A shopkeeper expects a gain of 22.5% on his cost price. If in a week, his sale was of Rs. 539, what was his profit?