Scaling a workforce, harder cases

Exercise and reference answers

Questions

1. Question

   8 workers take 6 days. 4 workers take

   Choices

   1. 3 days
   2. 6 days
   3. 12 days

   Correct choice

   12 days

2. Question

   5 workers take 12 days. 15 workers take

   Choices

   1. 4 days
   2. 36 days
   3. 6 days

   Correct choice

   4 days

3. Question

   Trebling the workforce changes the time to

   Choices

   1. three times
   2. a third
   3. the same

   Correct choice

   a third

4. Question

   10 workers take 9 days. The total work equals

   Choices

   1. 19 worker-days
   2. 1.1 worker-days
   3. 90 worker-days

   Correct choice

   90 worker-days

Explanation