Brain Teasers
-2, 4, -12, 48, -240, ...
-2, 4, -12, 48, -240, ...
What is the next number in the above series?
What is the next number in the above series?
Answer
1440. The first number is multiplied by a negative 2, the second by a negative 3, the third by a negative 4 and so on.Hide Answer Show Answer
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Comments
good teaser.
great teaser, thanks
i didnt get it
I was able to get it, but I reallu wish I could of had a calculator to figure out the answer. I understood the pattern
great teaser, very cool
Fun, easy and entertaining teaser; I worked it out in my head and got it very quickly.
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