Question

finish the sequence 3, -6, 12, 4, 20, ?

Answer 1

it is not a sequence

Answer 2

if you have a positive, negative, positive, positive, positive
it is not a possible case.

Answer 3

I'll add to what Solomon already said, it's only a sequence up until 12.

Answer 4

yeah, till 12 :)

Answer 5

it seems the question should be to find the outlier

Answer 6

look at the differences to see the pattern. make a table

Answer 7

see the pattern? what is the output for n = 6? n = 7?

Answer 8

After looking at this again, ? = 13. The next difference would be -7, therefore ? is 13.

Answer 9

that's what i get and the next number after that?

Answer 10

The difference would be 14, so the number is 27.

Answer 11

very good!

Answer 12

i think you have it!

Answer 13

pgpilot326 - how about 7, 16, 8, 27, 9 , ?. What is the pattern and next number?

Answer 14

btw, just because it's not arithmetic or geometric doesn't mean it's not a sequence.

Answer 15

is this my homework? give it a shot yourself!

Answer 16

i have looked at this for hours and its driving me nuts.