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Problem 24 (2007 AMC 8)

AMC 8Normal

From module Introduction to Probability

Problem

A bag contains four pieces of paper, each labeled with one of the digits 11, 22, 33 or 44, with no repeats. Three of these pieces are drawn, one at a time without replacement, to construct a three-digit number. What is the probability that the three-digit number is a multiple of 33?

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