a) 16%
b) 20%
c) 18%
d) 25%
Answer: b
Explanation:
12 Cost Price = 10 Selling Price
$$\eqalign{
& \frac{{{\text{CP}}}}{{{\text{SP}}}} = \frac{{10}}{{12}} = \left. {\frac{5}{6}} \right\}{\text{1 profit}} \cr
& {\text{Profit }}\% = \frac{1}{5} \times 100 \cr
& \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, = 20\% \cr} $$
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