Problem

2014 AIME I Problem 12

Let A=\{1,2,3,4\}, and f and g be randomly chosen (not necessarily distinct) functions from A to A. The probability that the range of f and the range of g are disjoint is \tfrac{m}{n}, where m and n are relatively prime positive integers. Find m.

Leading zeroes must be inputted, so if your answer is 34, then input 034


Full credit goes to MAA for authoring these problems. These problems were taken on the AOPS website.


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Problem Tags: Counting and probability Number theory

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