You can
put this solution on YOUR website!well lets see if we can come up with something on this
:
Lets call typist A's rate A
and typist B's rate B
:

:

--->

:
with these formula's they should keep up with there work load. If you solved these two equations as if they were equal instead of inequalities A=12 and B=18
....so if A falls behind this 12 pages per day pace then B has to pick up the slack. if A only types 8 pages per day then B must type at least 22 pages per day