Manjeet Singh sold an article for ₹9000
Let CP be cost price
Profit $$=\frac{1}{5} \times CP =0.2CP$$
Now Profit percentage is product of Profit and 100 by CP.
Profit percentage $$= \frac{ Profit}{CP} \times 100 $$
Profit percentage $$=\frac {0.2CP}{CP}\times100 $$
Profit percentage = 20 %
Option C ic correct
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