Question 12
A vending machine accepts 10¢ coins, 20¢ coins, 50¢ coins and \$1 coins only. Ivy wants to buy a can of drinks that costs \$1.60. She has eight 10¢ coins, three 20¢ coins, two 50¢ coins and one \$1 coin. If she wants to get rid of as many coins as possible, what is the combination of coins that she should put inside the vending machine?
