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Puzzle: Guess the next number in the series 1, 11, 21, 1211, 111221, ... [CLOSED]

+2 votes
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This question has an answer at: Guess the next number in the series 1, 11, 21, 1211, 111221, ...
posted Jan 4, 2014 by Deepankar Dubey

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2 Answers

+1 vote
 
Best answer

1 = one 1 = next number is 11
11 = two 1's = next number is 21
21 = one 2, one 1 = next number is 1211
1211 = one 1 one 2 two 1 = next number is 111221
111221 = three 1 two 2 one 1 = next number is 312211

answer Jan 4, 2014 by Luv Kumar
+2 votes

AS each number tell about previous number, so next number will be 312211

answer Jan 4, 2014 by Neeraj Pandey
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