The famous profit and loss puzzle!you are a jewelry shop owner.
one day a customer comes in to buy a $70 ring. He only has a voucher worth $100. you do not have any cash around, so you go next door to the pastry shop and ask the owner to change the $100 voucher for cash. the pastry shop owner gives you the cash.
you go back to your shop and give the customer $30 in change along with the ring.
10 minutes later, the pastry shop owner comes in angry and tells you that the voucher is fake, and that he wants his $100 back. you apologize and give him the $100.
question: What is your total loss? (the ring indeed is $70)
Incomes from Pastry shop -- $ 100
Outflows-- cost of ring given -- $ 70
refunded to customer -- $ 30
returned to pastry shopowner -- $ 100
Total outflows--$ 200
