SSC MTS 6 Aug 2019 Shift 3 Paper

Given:
A trader marked up his articles 25% more than the cost price.
He offered a discount of 10%
Formula used:
Selling price = Mark price × (100 – discount)%
Profit% = (selling price - cost price)/cost price × 100
Calculation:
Let the cost price be 100.
Mark price = 100 × 125% = 125
Selling price = 125 × 90% = 450/4 = 112.5
Profit% = (12.5/100) × 100 = 12.5%
∴ Trader’s profit percentage is 12.5%.