Question 1150533
if it takes 6 days for 6 workers to build a garage, how long would it take 9 workers?
<pre>
We have 6 workers the first time and 9 workers the second time.

The least common multiple of 6 workers and 9 workers is 18 workers.

if it takes 6 days for 6 workers to build a garage, then what about 18 workers?
They would work 3 times as fast so it would take them only 1/3 as long as it
took 6 workers, or only 2 hours.

So if it takes 18 workers 2 hours to build a garage, then 9 workers would take
twice as long, so it would take them 4 hours.

Edwin</pre>