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Guess the next number in the series 1, 11, 21, 1211, 111221, ...

+3 votes
390 views
Guess the next number in the series 1, 11, 21, 1211, 111221, ...
posted May 3, 2014 by anonymous

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2 Answers

+4 votes

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 May 3, 2014 by Salil Agrawal
+2 votes

312211

this is the view and solve problem..here 1 appears 3 times 2 has appear 2 times and 1 appears 1 time

answer Mar 28, 2016 by Aman Mehrotra
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