What average pay per month will she receive if she works a full year?

Question

Yi chan was offered a new job. For the first 3 months she works, she will be paid a monthly salary of $1,600. Her monthly pay for the next 3 months will be $1,760. For the next 6 months after that, yi's montholy salary will be $ 1936. What average pay per month will she receive if she works a full year?

Answer 1

Hi Kenishia

 

We want to calculate a weighted average, where the # months represent the weight

 

Salary      # months        Salary x #months

1600               3                     4800

1760               3                     5280

1936               6                   11616 

                                            -----------

Total               12                  21696

 

Divide the total (salary x #months) by the total #months

21696/12 = 1808 = average salary