Quote from Mecro:
1) Answer is 400, not on ur list. 208x2 - 2^4
2) 81. 54x2-54/2. Sequence starts with the 2nd number, otherwise I'm wrong.
3) 8. I simply drew out the pattern of change to the 2nd level.
4) That's a good one, not sure yet.
The answer to 1 is 401, the next number is the sum of the last 4 numbers (since 400 is not an answer, your formula is wrong).
I am assuming that for a pattern to exist, that you have to be able to quantify it into an equation. So for num 2, you could say that every other number is 6,8,10, but also 18 div 6 is 3, and 24 div by 8 is 3.
BTW, I agree with asia prop, an equivalent to giving this test is to see if you are tone deaf. I wonder, are tone deaf people good at trading???