Question

Find the missing term of the following arithmetic sequence.
...3, , 27, ...

Answer 1

We can find the common difference by subtracting the first term from the second term, or the second term from the third term:

27 - 3 = 24

So the common difference is 24.

To find the missing term, we can add the common difference to the second term:

27 + 24 = 51

Therefore, the missing term in the sequence is 51.

The complete sequence is:

3, 27, 51, ...