Question 447619
<pre>
"It took 5 people 45 minutes"

Therefore it would take 3 times as many people, or 15 people,
only 1/3 as long as 45 minutes, or only 15 minutes.

Therefore it would take 1/5 of that many (15) people, or 3 people,
5 times as long as 15 minutes or 75 minutes.

Edwin</pre>