Question 92
If cost price of 10 pens is equalto the selling price of 8 pens, thenthe trader gets
Solution
Let the cost price of one pen = 1Rs.
So, cost price of 10 pens = 10Rs.
Selling price of 8pens = cost price of 10 pens
So, selling price of one pen$$=\dfrac{10}{8}=1.25$$Rs.
Hence profit earned by the trader $$=\dfrac{(1.25-1)\times 100}{1}=25\%$$
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