On the average, a certain
light bulb is supposed to last 450 hours. If it takes Mary an average
of 6 1/4 hours to read a novel, what is the maximum number of novels
Mary can expect to finish reading during the life of the bulb?
Mary put in a total of 16 1/2 hours mowing lawns during 5 days of the past week. How long was her average work day?
16 1/2 = 16.5
16.5 (hours) / 5 (days) = x (hours per day)
16.5/5 = 3.3 hours per day
Hope this helps :)
