The sequence "11, 14, 17, 20" is an arithmetic sequence where each term increases by **3**. 

To find the next term, we can add the common difference to the last term:

\[
20 + 3 = 23
\]

So, the next number in the sequence is **23**.

### Would you like more details or have any questions?

Here are five related questions that build on this topic:

1. How do you find the common difference in an arithmetic sequence?
2. What is the general formula for the nth term of an arithmetic sequence?
3. How would you determine the 10th term of the sequence "11, 14, 17, 20"?
4. Can an arithmetic sequence have a negative common difference? If so, what would that look like?
5. How do you find the sum of a finite arithmetic sequence?

**Tip:** When working with sequences, identifying the pattern or rule that governs the progression of terms is crucial for finding subsequent numbers or understanding the sequence's behavior.

Discover the next number in the arithmetic sequence 11, 14, 17, 20. Understand the pattern and learn how to calculate subsequent terms in arithmetic sequences. Suitable for students in Grades 7-9.

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