A shopkeeper sold an article for ₹180 by making a profit of 20%. The shopkeeper offered a discount of ₹30 on the marked price. How much percent above the cost price the article is marked?

40%

Selling price of the article = 18=

Discount = 30

MP = 180 + 20 = 210

Now profit given = 20 % when it is being sold at 180

So the CP = \(\frac{180 × 100}{120}\) = 150

So it is marked at = 210 - 150 = 60 above the CP

Marked% = 60 × \(\frac{100}{150}\) = 40%