How much Shop keeper Loss bearing..?
A shop keeper had a mobile. He is agreeing to sell this product on Break Even. The cost of Mobile is $20. A lady came and buy this Mobile and give $100 note, The Shop keeper had no exchange of 100$.He co-ordinate with another shop keeper, he gave exchange of $100. The 1st Shop keeper returned $80 to that lady with mobile and take 20$ as his mobile cost.
On very next day 2nd shop keeper came and said, that $100 bill is counterfeit and he recovers $100 from 1st shop keeper.
How much loss the 1st shop keeper bearded