Correct Answer - Option 1 : 50%
Given
Profit % = 5%
Discount% = 30%
Concept used
CP : MP = 100 - Discount : 100 + Profit
Calculation
CP : MP = 100 - 30 : 100 + 5
CP : MP = 70 : 105
CP : MP = 2 : 3
Markup% = (Markup / CP) × 100
Markup% = 1/2 × 100
Markup% = 50%
∴ The value of x is 50%.