[43] 3, 4, 7, 7, 13, 13, 21, 22, 31, 34, ?

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Q:1

3, 4, 7, 7, 13, 13, 21, 22, 31, 34, ?

Explanation:
The given sequence is a combination of two series :I. 3, 7, 13, 21, 31, ? and II. 4, 7, 13, 22, 34The pattern in I is + 4, + 6, + 8, + 10,…..The pattern in II is + 3, + 6, + 9, + 12,…..
So, missing term = 31 + 12 = 43.

Additional Questions

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2, 5, 9, ?, 20, 27	Answer
2, 3, 3, 5, 10, 13, ?, 43, 172, 177	Answer
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2, 1, 2, 4, 4, 5, 6, 7, 8, 8, 10, 11, ?	Answer
Which of the following will not be a number of the series 1, 8, 27, 64, 125,…..?	Answer
1, 1, 2, 6, 24, ?, 720	Answer

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