Question 93
The selling price of an article is ₹ 75. If the profit percent is equal to its cost price, then the cost price ofthat article (in ₹) is
Solution
Let cost price be CP
$$CP\left(1+\frac{CP}{100}\right)=SP=75$$
$$100CP+CP^2=7500$$
This gives CP = -150 or CP = 50
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