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 = 
<gadget id="calculator">24*1/3</gadget>
<output>8</output>
8 bottles.
Thus, 24 bottles - 8 = 
<gadget id="calculator">24-8</gadget>
<output>16</output>
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 = 
<gadget id="calculator">16*1/2</gadget>
<output>8</output>
8 bottles.

<result>8</result>