A man bought an article and sold it at a gain of 10%. If he had bought the article at 20% less and sold it for ₹1,000 more, he would have made a profit of 40%. The earlier selling price of the article (in ₹) is:

55,000

Let the CP of the article = X

Man sold it at 10% profit which means he sold it at 1.1X

 Had he bought it at 0.8X and sold at 1.1X + 1000 

 Means 1.1X+1000- 0.8X = 40 % of 0.8X

 0.3X+1000 = 0.32X

 1000 = 0.02X

 X = 50000

So, the selling price = 110% of 50000 = 55000