Question

I sold goods worth 20 to a customer who paid for it with a 100 note. As I did not have change, I gave the 100 note to my neighbour and got change from him. I gave 80 to the customer and kept 20 with me. Later my neighbour returned the 100 note to me saying that it was fake. I gave him back his money. What was my loss?​

Answer 1

Answer:

80 because you borrowed 100 and you were given 20

by the buyer so 100-20=80