A manufacturer gives a discount of 20% to a wholesaler on an A. C. marked at ?15000/-.The wholesaler then sells it to a retailer at 10% discount on marked price . If a retailer sells it at a marked price and GST charged is 12% at each stage of intra state transaction, (i) Cost price of the wholesaler(ii) GST paid by the retailer to the state govt(iii)Selling price of the A.C at the end stage including GST.