Question 13
Irene has 4 dollars. She wants to buy as many ice creams as possible. Each ice cream costs 50 cents, and 3 ice cream sticks can be exchange for another free ice cream. What is the largest number of ice creams Irene can get? (Two 50 cents are equal to 1 dollar)
Self-study condition (editorial): exchange only sticks Irene currently has; borrowing sticks is not allowed in the graded version.
Self-study condition (editorial): exchange only sticks Irene currently has; borrowing sticks is not allowed in the graded version.