1) A restaurant took 1/5 of an hour to use 1/6 of a package of napkins. At this rate, how many hours would it take to use the entire package?

1/5 of of an hour = 12 minutes

if 12 mins uses 1/6th then we use promotion

12 mins = 1/6

in other words

12/1 = 1/6

to get the entire package we invert the equation

therefore

12/1=6/1

12×6=72 mins

72 mins in hours =

1 hour 12 mins to use the entire package

the answer is 5636.7