Scaling the workforce

Exercise and reference answers

Questions

1. Question

   If 2 workers take 12 days, 4 workers take

   Choices

   1. 6 days
   2. 24 days
   3. 12 days

   Correct choice

   6 days

2. Question

   If 3 workers take 12 days, 6 workers take

   Choices

   1. 18 days
   2. 6 days
   3. 24 days

   Correct choice

   6 days

3. Question

   Halving the workforce does what to the time?

   Choices

   1. halves it
   2. leaves it alone
   3. doubles it

   Correct choice

   doubles it

4. Question

   Workers and days for one job satisfy

   Choices

   1. x₁y₁ = x₂y₂
   2. x₁/y₁ = x₂/y₂
   3. x + y = k

   Correct choice

   x₁y₁ = x₂y₂

Explanation