charlottewilss charlottewilss

08-05-2017
Mathematics

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there are 50 competitors in the mens ski jumping. 30 move on to the qualifying round. how many different ways can the qualifying round be selected

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ApplePiWizard ApplePiWizard

08-05-2017

They can take the 30 best abd remove the 20 worst, or remove the 20 best and send on the 39 worst.

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