A style cloth emporium the shopkeeper measures 20% less for every metre of cloth also he marks-up goods by 20%. What is the profit percentage?

Answer: Option A

Let CP = Rs. 100, then SP will be 120.
He gives cloth worth Rs. 80 instead of Rs. 100.
Hence,
% Profit = $$\frac{120-80}{80}\times 100=50\%$$