A television manufacturing company has a two tier channel comprising distributors and retailers. The company offers the following prices and schemes to its distributors and retailers. Distributor selling price is rs $20000.$ Distributor scheme is $20100$ retailer scheme offered by the company to retailer $1$ selling $50$ tvs a month is rs $100$ per tv set. Retailer scheme offered by the company to retailer $2$ selling $100$ tvs a month is rs $500$ per tv set. The tv set sells in the market for rs $20400.$ The cost of the tv set to company is rs $19000.$