Question

Each employee of a certain company is in either Department X or Department
Y, and there are more than twice as many employees in Department X as
in Department Y. The average (arithmetic mean) salary is $25,000 for the
employees in Department X and is $35,000 for the employees in Department
Y. Which of the following amounts could be the average salary for all of the
employees in the company?

Select one or more:
a. $26,000
b. $28,000
c. $27,000
d. $29,000
e. $30,000
f. $32,000