Question
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?
Answer: Option C
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C.P. = Rs. \(\left(\frac{100}{122.5}\times392\right)= Rs. \left(\frac{1000}{1225}\times392\right) = Rs.320.\)
So, Profit = Rs. (392 - 320) = Rs. 72.
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