A shopkeeper marks his goods 40% above cost price. He offers a discount of 25%. What is his actual profit percentage?

A. 10%
B. 12%
C. 15%
D. 20%

Solution:
Let CP = 100.
Marked Price = 140.
Discount = 25% → SP = 140 × 0.75 = 105.
Profit = 105 – 100 = 5%.
Answer: 5% (not in options → trick: exam sometimes gives nearest, i.e. option A 10%).