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25 March, 08:20

Sally needs 50% to pass. If she gets 480 marks and fails by 20 marks. What were the max marks she could have?

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  1. 25 March, 08:32
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    1000

    Step-by-step explanation:

    If the total score is T and she needs 50% to pass, it means that the pass mark

    = 50% * T

    = 0.5T

    If she fails by 20 marks, it means that her score is the difference between the pass mark and 20

    = 0.5T - 20

    Given that she gets 480 marks then

    0.5T - 20 = 480

    0.5T = 500

    T = 500/0.5

    = 1000

    The maximum marks she could have is 1000
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