Mimi and 5 friends went to lunch. After everyone gave Mimi money, she had
more money than she needed to pay the check. The friends split the extra
money evenly. If everyone got $3 back, how much extra money was there?
Only the friends split the money and got $3 each. Mimi was not involved in splitting the money. Since there were 5 friends, and each friend got $3, the total amount of money that was split was 5 * $3 = $15.
