Respuesta :
Answer: Company B
Explanation:
Current company:
Average time = 40 minutes
Cost = Average time x researcher cost
     = 40 x $2
     = $80
[tex]Productivity\ per\ dollar\ inpt= \frac{Total\ fee\ charged}{cost}[/tex]
[tex]Productivity\ per\ dollar\ inpt= \frac{400}{80}[/tex]
                            = $5
Company A:-
Company A will reduce the current average time by 10 minutes
Average time = 40 - 10
            = 30 minutes
Cost per search = $3.50
Cost = Average time x Researcher cost + cost per search
    = 30 x $2 + $3.50
    = $63.50
[tex]Productivity\ per\ dollar\ inpt= \frac{Total\ fee\ charged}{cost}[/tex]
[tex]Productivity\ per\ dollar\ inpt= \frac{400}{63.50}[/tex]
                            = $6.29
Company B:-
Company B will reduce the current average time by 12 minutes
Average time = 40 - 12
            = 28 minutes
Cost per search = $3.60
Cost = Average time x Researcher cost + cost per search
    = 28 x $2 + $3.60
    = $59.60
[tex]Productivity\ per\ dollar\ inpt= \frac{Total\ fee\ charged}{cost}[/tex]
[tex]Productivity\ per\ dollar\ inpt= \frac{400}{59.60}[/tex]
                            = $6.71
The revenue per dollar of input of:
Current Company = $5,
Company A = $6.29 and Â
Company B = $6.71.
The highest productivity in terms of revenue per dollar of input is provided by Company B.