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    I thought that was pretty hard.

    Putting the game theory solution into a simplex tableau will cause problems and order book Dynamic programming questions are the hardest type.

    having a negative slack variable in the simplex question was very weird too.
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    (Original post by Arsey)
    I thought that was pretty hard.

    Putting the game theory solution into a simplex tableau will cause problems and order book Dynamic programming questions are the hardest type.

    having a negative slack variable in the simplex question was very weird too.
    Edexcel have been horrible this year with their exams after last years easy exams. i even found s2 hard!
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    (Original post by alexthompson1998)
    Edexcel have been horrible this year with their exams after last years easy exams. i even found s2 hard!
    Other than Core 4 which I thought was okay (ish) most of them have been harder this year.
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    (Original post by Arsey)
    Other than Core 4 which I thought was okay (ish) most of them have been harder this year.
    its always reassuring after an exam to hear that tho
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    (Original post by Arsey)
    I thought that was pretty hard.

    Putting the game theory solution into a simplex tableau will cause problems and order book Dynamic programming questions are the hardest type.

    having a negative slack variable in the simplex question was very weird too.
    Can you predict the grade boundaries please?
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    any grade boundaries ideas?
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    (Original post by jonny5263)
    any grade boundaries ideas?
    I was thinking around 67 for an A* and 60 for an A. It was a hard paper but would be surprised if they were any lower
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    The paper was easy except for the last question, idk why last years paper had high grade boundaries, personally i found that more harder
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    (Original post by JoshC98)
    I was thinking around 67 for an A* and 60 for an A. It was a hard paper but would be surprised if they were any lower
    What do you think 40/75 would get me?
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    I got a negative improvement index when asked if T was optimal. I think it was the cell D3 and was -1, Anyone else?
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    (Original post by anna096)
    I got a negative improvement index when asked if T was optimal. I think it was the cell D3 and was -1, Anyone else?
    I think i got a -2 in cell B3 but there was another negative i got was a -1 cant remember which cell.
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    Did anyone else run out of time, or am I in the minority? Got up to three-quarters through Q7. a)
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    (Original post by 8752)
    For the question on game theory when it asked you to formulate it as a linear programming problem (the question before you had to put it in the simplex) did it say write your answer as inequalities or equalities??
    It said write them as equations so you had to include slack variables
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    When finding the second theta value , which was 11, did anyone get the "cycle"? So when you basically make a square / rectangle out of it
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    (Original post by Historygcse)
    When finding the second theta value , which was 11, did anyone get the "cycle"? So when you basically make a square / rectangle out of it
    Yep.
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    (Original post by JoshC98)
    Yep.
    And for the first theta value, 3, no cycle? It just carried on until the end, right?
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    (Original post by Historygcse)
    And for the first theta value, 3, no cycle? It just carried on until the end, right?
    Please reply , thanks
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    (Original post by Historygcse)
    Please reply , thanks
    Yes
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    Very generous paper, except dynamic programming, I'm pretty sure I got the final solution right, but lost some marks on other parts of the table. That really went well considering I revised for 1 day.
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    Didn't set the constraints up as equations, so I didn't add slack variables to it in the formulation of the game theory. How many marks will this drop me? I did however add the slack variables in setting the tableau up, believe I've got that fully right.
 
 
 
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