Correct Answer - Option 3 : 62.50%
Given:
Discount = 20%
Profit = 30%
Calculation:
Let M.P be 100x
S.P = (80/100) × 100x = 80x
Now, Profit = 30%
S.P = 130 and C.P = 100
So, S.P is same
130 = 80x
⇒ x = (80/130)
C.P = (80/130) × 100 = 800/13
According to the question, we get
[(M.P - C.P)/C,P] × 100
⇒ {[100 - (800/13)]/(800/13)} × 100
⇒ [(500/13)/(800/13)] × 100
⇒ 62.50%
∴ The markup percentage on cost price is 62.50%.