Q. Keith worked for 12 hours each day for 8 days. Then the next day he worked 9 hours. How many hours did Keith work in all?
Calculate total hours worked: Calculate the total hours worked for the first 8 days.Keith worked 12 hours each day for 8 days.Total hours for 8 days = 12 hours/day ×8 days = 96 hours.
Add hours on ninth day: Add the hours worked on the ninth day.On the ninth day, Keith worked 9 hours.Total hours for 9 days = Total hours for 8 days + Hours worked on ninth day.Total hours for 9 days = 96 hours + 9 hours = 105 hours.
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