Final answer:
Ivan and Kate will meet at 11:20 pm.
Step-by-step explanation:
To find the time when Ivan and Kate will meet, we can calculate the distance each of them travels and then compare their travel times.
Ivan travels 40 miles at a speed of 12 mph, so his travel time is
40/12 = 3.33 hours.
Kate travels at a speed of 16 mph and leaves 9.5 hours after Ivan.
Therefore, her travel time is 40/(16-12) = 10 hours.
To find the time when they will meet, we add Ivan's travel time to 8:00 pm, which gives us 11:20 pm.
So, Ivan and Kate will meet at 11:20 pm.