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1. How much percent above the cost price should a shopkeeper mark his goods so as to earn a profit of 32% after allowing a discount of 12% on the marked price ?

A. 50%

B. 40%

C. 60%

D. 45%

Solution:

\begin{aligned} \Rightarrow \frac{Cost price}{Marked price} \\ = \frac{100 - Discount %}{100 + Profit %} \\ = \frac{100 - 12}{100 + 32} \\ = \frac{88}{132}] 44 \\ ∴ Required % \\ = \frac{44}{88} \times 100 \\ = 50 % \end{aligned}

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