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# Maths, sequence question, urgggh watch

1. What is the next number in this sequence, been working on it for 2 hours and still can't get anywhere, maybe I'm missing the obvious, can anyone help. The sequence is 9, 18, 21, 25, 20.
2. You are wasting your time, there is no next number in the sequence
3. (Original post by sandvika)
You are wasting your time, there is no next number in the sequence
It's in an online test for an apprenticeship at IBM so I'm pretty sure it'll have a next number
4. If there was one and it would probably be something illogical such as the mean of the common difference or the mean of the mean of the common difference + the last term given (31 or 14). If the test isnt multiple choice then just write there isnt one.
5. (Original post by sandvika)
If there was one and it would probably be something illogical such as the mean of the common difference or the mean of the mean of the common difference + the last term given (31 or 14). If the test isnt multiple choice then just write there isnt one.
Okay, well thanks for helping, I'll do that.

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Updated: February 23, 2016
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