A wholesaler sells goods to a retailer at profit of 20%. The retailer sells to the customer, who pays 80% more than the cost of the wholeseler. What is the retailer's profit?

প্রশ্নঃ A wholesaler sells goods to a retailer at profit of 20%. The retailer sells to the customer, who pays 80% more than the cost of the wholeseler. What is the retailer's profit?