A trader quotes Rs. 45 for an article whose cost price is Rs. 30. The customer pays him a 50-rupee note. The trader does not have the change to give back Rs. 5 to the customer. He thus goes to a neighboring shop to get change for Rs. 50. The customer collects his balance Rs 5 The next day the neighboring shop owner realizes that the 50-rupee note was fake and demanded Rs. 50 back from the trader who give it. What is the total loss to the trader?