Final answer:
The most efficient approach would be to collaborate with the other interns and divide the tasks equally.
Step-by-step explanation:
If there were 100 tasks that needed to be done by the end of the day and there were four interns, the most efficient approach would be to collaborate with the other interns and divide the tasks equally. This way, each intern would be responsible for 25 tasks. By working together and communicating effectively, the interns can ensure that all the tasks are completed on time.