A loss of 10(1/2) % gets converted into a profit of 11(3/5) % when the selling price is increased by Rs 265.20. The cost price (in Rs) of the article is:

Let the CP of the article be 100a. Now, SP for 1st case = 100a - 100a × 10(1/2) % = 89.5a SP for 2nd case = 100a + 100a × 11(3/5) % = 111.6a According to the question, 111.6a - 89.5a = 265.2 22.1a = 265.2 a = 265.2/22.1 a = 12 So, cost price = 100 × 12 Rs. 1200 ∴ The cost price (in Rs.) of the article is 1200. Second method – Given – loss% = 10(1/2) and profit% 11(3/5) Increased selling price = 265.20 Let cost price =100 ATQ- 10(1/2) +11(3/5) = 265.20 21/2 + 58/5 = 265.2 (105 + 116) /10 =265.2 1 =2652/221 = 12 Then CP = 100×12 = 1200 Rs