Parikh sold his pen at a profit of ₹11. He calculated the profit percentage on selling price and found it to be 25%. The cost price (in ₹) of the pen is:
Parikh sold his pen at a profit of ₹11. He calculated the profit percentage on selling price and found it to be 25%.
profit % = $$\frac{profit}{selling\ price}\times\ 100$$
$$25 = \frac{11}{selling\ price}\times\ 100$$
$$\frac{25}{100}=\frac{11}{selling\ price}$$
$$\frac{1}{4}=\frac{11}{selling\ price}$$
selling price = 44
cost price = selling price - profit
= 44-11
= ₹33
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