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A box contains six black pens, four blue pens, and seven red pens. Without
looking, Clarissa randomly picks a red pen out of the box. If she chooses
another pen out of the box without replacing the first one, what is the
probability that she will pick a red pen next time? Write your answer as a
percent rounded to the nearest tenth.

Sagot :

AvaniK

21 total pens

- 1 red pen

20 pens total

6/20 red pens left

6/20 = 3.3333

= 3.3