Question 1160574
It takes 6 people a total of 12 days to paint a wall.<pre>So it would take 1 person 6 times as long, or 72 days. (since 6×12=72)</pre>How long would it take 4 people to paint the same wall?<pre>
Only 1/4 as long, or 18 days. (since 72×(1/4)=18). 

Edwin</pre>