Question 279371
Well the truth of the matter is that Norman is lazy and a cheat and lacks a good work ethic.
So Reginald will be doing all the work. So it will still take Reg 12 minutes to round them up even with Norman watching!

otherwise If Norman got off his butt they could do it in half the time.

With the given rates of work
x/12+x/18=1
x/2+x/3=6
3x+2x=36
5x=36
x=36/5
7 minutes 12 sec.

check
36/5/12+36/5/18=1
3/5+2/5=1
1=1
ok