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What is the next number in the following sequence 6 11 18?

Published in Number Sequences 1 min read

The next number in the sequence 6, 11, 18 is 27.

Sequence Analysis

The given sequence is 6, 11, 18. Let's analyze the differences between consecutive terms to find a pattern.

  • Difference between 11 and 6: 11 - 6 = 5
  • Difference between 18 and 11: 18 - 11 = 7

The differences (5, 7) form an arithmetic progression with a common difference of 2. Therefore, the next difference should be 7 + 2 = 9.

According to the provided reference, the next term is found by adding this difference to the last term in the sequence: 18 + 9 = 27. The reference confirms this by stating, "So the term would be 27. As 27 - 18 = 9. And the sequence will look like, 6, 11, 18, 27."

Resulting Sequence

Therefore, the sequence becomes: 6, 11, 18, 27.

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