Question 937140
Let x= number of painters needed to paint 18 light poles in 9 minutes
Then x painters paint at the rate of (18/9)=2 light poles per minute
3 painters paint at the rate of (3/3)=1 light pole per minute
Now we can set up a ratio:
(x/2)=(3/1)
x=6 painters ----number needed to paint 18 poles in 9 minutes

Does this help?---ptaylor