Im a little stuck on this. Can someone help me find the next number in the sequence or pattern.
3, -6, 12, 4, 20, ?

the avail answers i'm given are (13, 14, 6, or 16)

Question

Im a little stuck on this.  Can someone help me find the next number in the sequence or pattern.
3, -6, 12, 4, 20, ?

the avail answers i'm given are (13, 14, 6, or 16)

aum · Answer

The differences are: -9, +18, -8, +16
So the next difference will be -7
20 - 7 = 13.

anonymous · Answer

So this really does not have  formula per se?

anonymous · Answer

It is just Logical Reasoning.. :)

aum · Answer

No, it is a pattern we need to find.

anonymous · Answer

well, i mean a geometric forumual

anonymous · Answer

I got it, i was getting stuck on something so simple.. Thank you for helping me out wit this.  LOL

anonymous · Answer

No, it is not something like AP or GP, you are just given a pattern, with proper reasoning you have to find the next time.. :)

aum · Answer

You are welcome.

anonymous · Answer

I'm trying to apply something that would not work