BRAIN STORM

Three friends went to a bar and spent a total amount of $30, $10 each. The bartender realized he made a mistake and was suppose to charge them $25, he decided to give them back $5 but could not split it evenly, so he gave them $3, $1 dollar to each person and kept $2 for himself

ILLUSTRATED
10 - 1 = 9
10 - 1 = 9
10 - 1 = 9
----
30

9 x 3 = 27 + 2 = 29

WHAT HAPPENED TO THE OTHER $1 DOLLAR?


Initial amount collected = $30
realized amount after proper check = $25
amount to be returned = $5
returned amount = $3 ($1 dollar to each)
amount kept by bartender = $2