Question 983396
Each person performs the task of painting at the same rate.
Rates of people on the task together are simply added.
RT=J to relate rate, time, amount of task.


Let p be the unknown number of painters.


{{{highlight(system(2r*2=2,p*r*6=18))}}}


This system is simplifiable.
{{{system(r*2=1,p*r*3=9)}}}


Find r, first.
{{{highlight_green(r=1/2)}}}


Find p.
{{{p=9(1/(3r))}}}
{{{p=3/r}}}
{{{p=3*2}}}
{{{highlight(p=6)}}}