also, anyone who has done the examination style paper from the text book (d1 edexcel), do you know if number 3 b- the first-fit bin packing, has the wrong answer? I got a different setting of the bins?
i don't think it's correct, i know for a fact there are many mistakes in the new edition of the d1 book.
What's wrong with it?
C must be happening and even though D has some float. D must be started in the region of day 3 to day 9 and lasts for 6 days, therefore D must be happening on day 8.
Activity F must be happening, whilst E and G may be happening.
C must be happening and even though D has some float. D must be started in the region of day 3 to day 9 and lasts for 6 days, therefore D must be happening on day 8.
Activity F must be happening, whilst E and G may be happening.
sorry but, for part b- how can the activities E and G be classified as - may be happening- on the 15th day? if you trace down the vertical line, E and G are both at their "float" stage on the 15th day, doesn't that mean they must be happening?
sorry but, for part b- how can the activities E and G be classified as - may be happening- on the 15th day? if you trace down the vertical line, E and G are both at their "float" stage on the 15th day, doesn't that mean they must be happening?
Yes, the order of the nodes in an activity network matter, allows you to work out liβ for each node and is required for finding the critical path.
E and G may not be happening on the 15th day. Just because the float covers the 15th day, it doesn't mean that they are happening then. They can be started at their earliest start times and therefore they are finished before day 15.
Yes, the order of the nodes in an activity network matter, allows you to work out liβ for each node and is required for finding the critical path.
E and G may not be happening on the 15th day. Just because the float covers the 15th day, it doesn't mean that they are happening then. They can be started at their earliest start times and therefore they are finished before day 15.
so why is it that activity 6 doesn't HAVE to or must not be happening on day 8?