### A dealer buys an article marked at Rs. 25,000 with 20% and 5% off. He spends Rs. 1,000 for its repairs and sells it for Rs. 25,000. What is his gain or loss per cent?

A. loss of 25% B. gain of 25% C. gain 10% D. loss of 10% Answer: Option B
Marked Price = 25000. After first discount it become, = 25000 – 20% of 25000 = 20000. After second discount, it becomes = 20000 – 5% of 20000 = 19000. So, SP = 19000. CP for the man who bought it, as he spends 1000 on repair. = 19000 + 1000 = 20000 Profit = 25000 – 20000 = 5000. %Profit $=\frac{5000 \times 100}{20000}=25 \% Short-Cut 25000(MP) == 20%(Disc.) ⇒ 20000 == 5%(disc.) ⇒19000(CP) Spends on repair = Rs. 1000 Then, CP becomes = 19000 + 1000 = 20000 Profit = 5000 % profit$=\frac{5000 \times 100}{20000}=25 \%\$