There would be a loss of 10% if an article is sold for 43.20. At what price should it be sold to gain 10% ?

Answer: Option B

After selling for Rs. 43.20, it gives a loss of 10%
90% → 43.20
Selling Price
$$=\frac{43.20}{90}\times 100\times \frac{110}{100}$$
for gaining 10% profit = 52.80