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60 questions were submitted for the exam, Andrey did not learn 3 of them. Find the probability that he will come across a learned question.

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answers: 1
Expert:

Andrey learned 60 − 3 = 57 questions. Therefore, the probability that he will get a learned question on the exam is equal to

57/60 = 19/20 =0.95.

Answer: 0.95.

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