Give the step-by-step reasoning process and then the final answer. A family bought a 24 pack of bottled water. They drank 1/3 of them on the first day and 1/2 of what was left after the first day on the second day. How many bottles of water remain after 2 days?
After 1 day, the family drank 24 bottles * 1 / 3 = 8 bottles. Thus, 24 bottles - 8 = 16 remain. On the 2nd day they drank half of the remaining 16, so half would be leftover at the end of day 2, or 16 * 1 / 2 = 8 bottles.
The final answer: 8.