Mathematics, 26.11.2021 09:30, mis33

There are 30 pens in a box. 12 of the pens are black.
7 of the pens are green.
The rest of the pens are red.
One of the pens is chosen at random.
Find the probability that the pen is red.

Answers: 3

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There are 30 pens in a box. 12 of the pens are black. 7 of the pens are green. The rest of the pens are red. One of the pens is chosen at random. Find the probability that the pen is red.

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There are 30 pens in a box. 12 of the pens are black.
7 of the pens are green.
The rest of the pens are red.
One of the pens is chosen at random.
Find the probability that the pen is red.