Answer to Question #264386 in Operations Research for Zee

Question

A plant that produces margarine has two machines that can press canola seed into

an oil. The two machines together must produce at least 900 litres of oil per day.

Machine A produces at least twice as much oil as machine B at all times. The other

processes involved in the factory stipulate that the two machines can produce a

maximum of 1500 litres of oil per day.

What is the maximum amount of oil per day that A and B can produce?