abcdeabcdeabc . . . In the sequence of letters shown above, the first letter is a , followed by b , c , d , and e , at which point the pattern repeats. Which of the following is the 31st letter in this sequence?

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Accepted Answer

The repeating pattern is "abcde", which consists of 5 unique letters. Because the pattern repeats every 5 letters, we can find the letter at any position by dividing the position number by 5 and looking at the remainder: 31 ⁄ 5 = 6 with a remainder of 1. A remainder of 1 means the 31st letter is the 1st letter in the repeating pattern, which is a .

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