Correct Answer - Option 2 : Rs. 22,800
Given
Selling Price = Rs. 16,720
Loss = 12%
Concept
Selling Price = Cost price - Loss
And selling price = Cost price + Profit
Calculation
Let the cost price is Rs. x
16,720 = x - 12% of x
⇒ 16,720 = 88x/100
⇒ x = 19,000
New selling price = 19,000 + 20% of 19,000
⇒ 19,000 + 3800
⇒ 22,800
∴ Kunal must sold a chair for Rs. 22,800 to gain 20%