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1. A retailer purchases a grinder at a discount of 15% of the whole seller and sales it for Rs. 1955 at a profit of 15%. The amount of discount received by the retailer from the whole seller was = ?

A. Rs. 720

B. Rs. 290

C. Rs. 300

D. Rs. 330

Solution:

Selling price of grinder = Rs. 1955

\begin{aligned} Cost price of grinder \\ =  1955 \times \frac{100}{115} \\ = Rs . 1700 \\ Marked price of grinder \\ = 1700 \times \frac{100}{85} \\ = Rs . 2000 \\ Discount by the retailer \\ = 2000 \times \frac{15}{100} \\ = Rs . 300 \end{aligned}

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