Mr. Kent teaches 7 classes that are 50 minutes each. He has a 50 minute lunch break he also has a 30 minute lunch break. How long does Mr. Kent spend teaching?
7 * 50 minutes = 350 minutes = 5 hours and 50 minutes teaching
50 + 30 = 80 minutes of lunch = 1 hr and 20 minutes lunch
So
350 + 80 = 430 minutes = 7 hours and 10 minutes [ total time]
Lunch is not teaching
Therefore 350 mins
