Question 115

20% of cost price is equal to 30% of the selling price. What is the loss per cent ?

Solution

Let cost price = Rs. $$x$$ and selling price = Rs. $$y$$

=> $$20\%$$ of $$x=30\%$$ of $$y$$

=> $$20x=30y$$

=> $$\frac{x}{y}=\frac{3}{2}$$

Let cost price = Rs. 3 and selling price = Rs. 2

Thus, loss % = $$\frac{(x-y)}{x}\times100$$

= $$\frac{(3-2)}{3}\times100=33.33\%$$

=> Ans - (A)

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