Orders have been coming in like crazy since the special order bundle sale started! Aaliyah has asked Missy to help them out with packing and shipping everything. Together, they were able to get the first round of orders done in 3 hours and 15 minutes. Aaliyah however, works a lot faster than Missy does; Aaliyah is 2 and a half times as fast as Missy. For the second day of fulfilling and shipping orders, Aaliyah is unavailable; Missy will have to do the same amount of work by themselves, on the second day.

How long in hours : minutes will it take Missy to complete the same amount of work, on their own?