Linear programming(June 2008 no.2)

this is because there are only 12000 hours available.

12000 snooker cues provides the most contribution therefore this will takeup 9000 hours. Giving only 3000 hours left to produce only 6000 of the pool cues.

Hope this helps

Because this is the point where the furthest parallel iso-contribution line can be drawn.

If you are still not sure which one to solve, just solve every point ABCDE and see which point gives the optimum production plan – but this is the long route.