Question:
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?

Option A):
gain 10%
Option B):
loss of 25%
Option C):
loss of 10%
Option D):
gain of 25%

Correct Answer is Option D):
gain of 25%

Explanation:
25000(MP)----20%↓---→20000---5%↓---→19000(CP).
Spends on repair = Rs. 1000.
Then, CP becomes = 19000+1000 = 20000;
Profit = 5000;
% profit = 5000*100/20000 = 25%.