Answer:
Total Travelling time = 1 hour 30 minutes.
Explanation:
The person starts travelling from New York at 1:45 pm and reached Chicago at 3:15 pm.
Then difference in time duration =
1:45 pm to 2:00 pm = 15 minutes
2:00 pm to 3:00 pm = 1 Hour
3:00 pm to 3:15 pm = 15 minutes
Total Travelling time = 1 hour + 15 minutes + 15 minutes
= 1 hour 30 minutes.