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Higher November 2020 Paper 1 Q20

EduqasHigherCurrent spec4 marksCombinations

20. Alys has 10 different-coloured tokens.
Each day, she chooses 3 of her tokens at random and places them in a row on her desk.

(a) Find the number of different ways in which this can be done. [2]
(b) One of her tokens is pink and another is green.

Find the number of arrangements where the middle token is pink or green. [2]
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