The profit triples if the selling price is doubled. The profit percentage is:

110 50 100 28

100

Let C.P be Rs. x and S.P be Rs. y. Then, 3(y - x) = (2y - x) ⟹ y = 2x Profit = Rs.(y - x) = Rs.(2x - x) = Rs. x ∴Profit % = (\(\frac{x}{x}\)  × 100)%=100%