Question 979858: WHAT IS NEXT IN THE SERIES 1, 11, 21, 1211, 11121, ______?
Answer by 428225(90)   (Show Source):
You can put this solution on YOUR website! Your series should actually be:
1, 11, 21, 1211, 111221 , ______?
To do these types of questions, you look at the amount of times a number appears in each term.
So for the term "1", there is "one, one", which numerically written would be "11".
In the term "11", there are "two, ones", which numerically written would be "21".
In the term "21", there is "one, two" and "one, one", which numerically written would be "1211"
In the term "1211", there is "one, one", "one, two" and "two, ones", which numerically written would be "111221"
Now, I will leave you to answer the question yourself.
|
|
|
