Homework Help: math- im really confused! please help!!

Posted by kim on Monday, July 11, 2011 at 3:51pm.

A company makes three products X, Y and Z. Each product requires processing by three machines A, B and C. The time required to produce one unit of each product is shown below.

Product X:-
Machine A: 1
Machine B: 2
Machine C: 2

Product Y:
Machine A:2
Machine B: 2
Machine C: 2

Product Z:
Machine A:2
Machine B: 1
Machine C:4

The machines are available for 200, 525 and 350 hours each month. How many units of each product can be manufactured per month if all three machines are utilized to their full capacity?

Some other Opinion ? - trig - Reiny, Monday, July 11, 2011 at 4:05pm
I saw this same question yesterday , tried it and got nowhere.

The way I see it :
for machine A : x + 2y + 2z = 200
for machine B : 2x + 2y + z = 525
for machine C : 2x + 2y + 4z = 350

solving these I got
x = 266 1/3
y = 25
z = -58 1/3

these answers satisfy the above equations, but of course make no sense.... (can't produce negative number of products)

Perhaps somebody else could look at this and see an error in my thinking.
Or ...., the problem could be flawed.
math- im really confused! please help!! - bobpursley, Monday, July 11, 2011 at 4:43pm
The problem makes no sense. With constraints (machine time), and costs (time on each machine for each product), this would make sense if there was a profit function, which there is not.
math- im really confused! please help!! - Damon, Monday, July 11, 2011 at 5:38pm
This is an incomplete linear programming problem I suspect.

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