Answer:
1.2 hours, or 1 hour 12 minutes.
Step-by-step explanation:
The first student's speed is 1 paper / 3 hours.
The second student's speed is 1 paper / 2 hours.
Their combined speed is:
1/3 + 1/2
= 2/6 + 3/6
= 5/6 paper/hour
So the time it takes to complete one paper is:
1 paper = 5/6 paper/hour × t
t = 6/5 hours
t = 1.2 hours, or 1 hour 12 minutes.
