A shopkeeper expects a gain of 22.5% on his cost price. If in a week, his sale was of Rs. 490, what was his profit?  Options.
A) s. 64  B) s. 69  C) s.72  D) s.75  E) s.90
C.P. = Rs. (100/122.5)x490   = Rs. (1000/1225)x490   = Rs. 400   Profit = Rs. (490 - 400) = Rs. 90.   Answer:s.90
<result>E</result>
A shopkeeper expects a gain of 22.5% on his cost price. If in a week, his sale was of Rs. 490, what was his profit?