Let the Cost price of the table be a Since he gains a profit of 30%, the selling price = a + (30/100) × a = 1.3a Let the Marked price of the table be b ⇒ b - (35/100) × b = 1.3a ⇒ b = 2a Now, if he sells the table at 40% discount New selling price will be = 2a - {(2a) × (40/100)} ⇒ New selling price = 1.2a ∴ New profit percent = [(1.2a - a) /a] × 100 = 20%