Question 1145912
The wasted time data is a distraction to the problem.  All you need is 50 weeks and 40 hours per week.  That's enough to find amount of time.


{{{50*weeks*40(hours/week)=2000*hours}}}


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If still not clear, recognize that the description is of a proportion.
40 hours per week, 50 weeks, how many hours?


{{{(40*hours)/(1*week)=(X*hours)/(50*weeks)}}}


{{{40(hours/week)=(X/50)*(hours/week)}}}


{{{40=X/50}}}


{{{40*50=X}}}


{{{X=2000}}}

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Note that 50 weeks may have 5 days per week of work.
If wasting 15 minutes per day, this is  (1/4)  hours per day of waste time.


{{{50*weeks*5(days/week)*(1/4)(hour/days)}}}


{{{(50*5/4)*hours}}},  the amount of time in hours wasted
62 hours 30 minutes were wasted during the fifty weeks.
All 2000 hours of worktime were paid, which included the time wasted.