Lizzy: In a factory, there are 300 employees. 200 of them earn $12 per hour. Of the rest, 40 of them earn $14 per hour. All others earn $17 per hour. What is the cost to employ all these people for one 8-hour long shift?.
Me: Hmmm, let me think. I think this is the detailed solution:
The cost of the 200 employees is 200 employees * $12 / employee / hour = $2400 per hour. The cost of the 40 employees is 40 employees * $14 / employee / hour = $560 per hour. The rest means 300 employees - 200 employees - 40 employees = 60 employees. These 60 employees' employment costs are at 60 employees * $17 / employee / hour = $1020 per hour. So in total all employees earn $2400 / hour + $560 / hour + $1020 / hour = $3980 / hour. During an 8 - hour shift, this cost would be at 8 hours * $3980 / hour = $31840. Final answer: 31840.