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1. A dealer buys an article marked at Rs. 25000 with 20% and 5% off. He spends Rs. 1000 for its repair and sells it for Rs. 25000 what is his gain or loss percent ?

A. Loss of 25%

B. Gain of 25%

C. Gain of 10%

D. Loss of 10%

Solution:

Marked price of an article = Rs. 25000
After discount, cost price

= Rs . 25000 \times \frac{80}{100} \times \frac{95}{100}

= Rs. 19000
After repair, cost price
= Rs. 19000 + 1000
= Rs. 20000
Selling price of an article = Rs. 25000

\begin{aligned} Gain % \Rightarrow \frac{25000 - 20000}{20000} \times 100 \\ Gain % \Rightarrow \frac{1}{4} \times 100 \\ Gain % \Rightarrow 25 % \end{aligned}

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