True or false: worker-days

Exercise and reference answers

Questions

1. Statement is true

   Yes

   Statement

   Workers multiplied by days measures the size of the job.

2. Statement is true

   Yes

   Statement

   If the job doubles, the worker-days double.

3. Statement is true

   No

   Statement

   Adding workers changes the total worker-days needed.

4. Statement is true

   Yes

   Statement

   Twice the workers finish the same job in half the days.

5. Statement is true

   No

   Statement

   Worker-days is a ratio, not a product.

Explanation