Mathematics, 27.12.2021 16:20 thatwyteboy937

There are 10 pens in a box. There are x red pens in the box. All the other pens are blue. Jack takes at random two pens from the box. Find an expression, in terms of x, for the probability that Jack takes one pen of each colour. Give your answer in its simplest form.

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There are 10 pens in a box. There are x red pens in the box. All the other pens are blue. Jack takes...

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