Number sequence
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Number sequence
13,12,13,16,12,20,12,?
2,3,4,9,8,27,?
Any help with these very much appreciated with an explanation
Thanks
2,3,4,9,8,27,?
Any help with these very much appreciated with an explanation
Thanks
Re: Number sequence
They look like 2 alternating sequences
So the first one is
13, 12, 13, 16, 12, 20, 12,
So the underlined sequence goes up by adding 4 each time. The bold sequence goes down by 1 every 2nd time.
Similarly
2, 3, 4, 9, 8, 27
The bold numbers multiply by 2 each time, the italic numbers multiply by 3 each time.
So the first one is
13, 12, 13, 16, 12, 20, 12,
So the underlined sequence goes up by adding 4 each time. The bold sequence goes down by 1 every 2nd time.
Similarly
2, 3, 4, 9, 8, 27
The bold numbers multiply by 2 each time, the italic numbers multiply by 3 each time.