Final answer:
To find the average salary of Anne and David in terms of Peter's salary, we need to determine their individual salaries. Given that Peter's salary is twice Anne's salary and half of David's salary, the average salary of Anne and David is 5/2 times Peter's salary.
Step-by-step explanation:
To find the average salary of Anne and David in terms of Peter's salary, we need to determine their individual salaries. Given that Peter's salary is twice Anne's salary and half of David's salary, let's assume Anne's salary is x, then Peter's salary is 2x, and David's salary is 4x.
The average salary of Anne and David can be calculated as (Anne's salary + David's salary)/2 = (x + 4x)/2 = 5x/2.
Therefore, the average salary of Anne and David is 5/2 times Peter's salary.