There are 11 pens in a box.
8 are black and 3 are red.
Two pens are taken out at random witho...
Mathematics, 25.06.2021 14:00, mmm5398
There are 11 pens in a box.
8 are black and 3 are red.
Two pens are taken out at random without replacement.
Work out the probability that the two pens are the same colour.
Answers: 2
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