What is the next number in this sequence?

0, 6, 12, 19, 27, 35, 45, 54, 63, ?

Good luck!


I've always preferred digital watches over analogue.

  • 2
    $\begingroup$ I haven't downvoted this, but please check Number Sequence Puzzles - What Not To Do. There's not really much to get hold of here: it's just a bare sequence of numbers with no hints or clues. $\endgroup$ – Rand al'Thor Sep 19 '19 at 5:14
  • $\begingroup$ good point. I've added a hint. $\endgroup$ – Dmitry Kamenetsky Sep 19 '19 at 5:39
  • $\begingroup$ I am sorry guys this turned out to be a bad puzzle. I wish I could delete it but I cannot. $\endgroup$ – Dmitry Kamenetsky Sep 20 '19 at 1:37

I think the answer is:



So, the consecutive differences are incremental via +1. So, I perhaps have the idea of having 73 as the next number, since that will increment the difference by +1.

Since, 6-0=6,






I think the answer is:



Because each alternate number is increasing by the starting difference but adding 3 with each progressive number in the series? Like +12,+15,+18. And likewise +13, +16, and therefore +19.

  • 1
    $\begingroup$ You got the right answer, but for the wrong reason. I will add more terms to the sequence to make it clearer. $\endgroup$ – Dmitry Kamenetsky Sep 19 '19 at 3:29

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