Today, 5 friends went out for lunch. their total bill was $36.10 , including tax and gratuity. they decided to split the bill equally and each paid with a $10 bill. how much money will each person get back?

Total spend = 36.10

one person's pay = 10
five persons' pay = 50

Extra amount
50 - 36.10
13.90

To distribute evenly, that extra amount has to be divided by 5
13.90 / 5
2.78

Therefore each person will get the money as $2.78