What is the next number in the series? 55,47,52,13,39,31,36 They tell me the answer is 9 but I can not figure out how...Ive been looking for an explanation and cant find one.

Question

anonymous · Answer

i get -3

anonymous · Answer

lol yeah I came up  with 31 as a common number and thats as far as i got

anonymous · Answer

If it's a repeating pattern, it's -3. Look at what's added to each number to get the next one (-8, 5, -39, 26, -8, -5)

anonymous · Answer

yeah I'm thinking they gave me the wrong answer they are practice questions for an interview test

anonymous · Answer

Odd interview. What's it for? They may want to find out if you can spot that it's wrong and how you handle it... or we're wrong in saying that it's wrong... :)

anonymous · Answer

true its for an upper management position and I have to take a few quantitative analysis tests its supposedly 3 hrs worth of testing and im like sheesh

anonymous · Answer

out of all the practice questions its the only one not making sense soo hopefully its them

anonymous · Answer

I want that job lol

anonymous · Answer

lol yeah me too