the number of days required to build is the number of workers. One house was built in 57 days by 6 workers. How many days would it take to build a similar house with 19 workers?

Answer 1

We have 19/6 times as many workers, so it should take 6/19 the amount of time.

6/19 · 57 = 18 days

Or, set it up as follows: Total work to complete project (as measured in worker days) = 6 · 57 = 19 · x

Here, the time it takes is inversely proportional to the number of workers. This means that the product of those two quantities is constant.

Answer 2

It would take 6/19 * 57 = 18 days