A craftsman in a woodworking shop takes 45 minutes to produce 12 spice racks. How long, in hours, will it take him to produce 27 spice racks?

Question

This is another question on my study guide. I am just checking if what I got is right. :)

Answer 1

He needs 45/12 = 3.75 mins to produce one spice rack

He will need 3.75 * 27 = 101.25 mins to produce 27 racks  and 101.25 mins/60 = 1.6875 hours

or 1 hour + 41 mins + 15 secs