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Q: Which number should come next in the series 25-49-81-121-169?

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10

The next number is -21

the answer will be 21

This is the series of square numbers, (16= 4*4). The next number is 5*5=25.

21

21

21

21.

The next number is 25 but there are the sequence is infinite so there can be no end to the sequence.

There is no specific number. It all depends on what shows are good. Should a bunch of new series come out on year that nobody likes, many new series will come out to follow. That year, there would be many TV series. However, a year that has many great TV series that everybody watches would have little new series, thus having less TV series that year.

This is the Fibonacci Series, where each term is the sum of the previous two. It continues 21, 34, 55 etc

it should already have come out

There should be 9 books total. The 6th should come out in April 2011.

The series is not going to come out because H20 was a terrible series that should have never been invented.

Well, the pattern is the previous number plus the current number. So the next three numbers would be 21, 34, 55...

This is the Fibonacci Series. Each term is the sum of the two previous terms. It continues 21, 34, 55, 89 ...

its over but a new series by Riordan should show up around may

The Pattern is 1^2- 2^2- 3^2- 4^2- 5^2 or 1 - 4 - 9 - 16 - 25 The next number in the series is 6^2 or 36

The series appears to increase as follows: 1 (+3), 4 (+5), 9 (+7), 16,, etc. If so, the next number in the series would be 25 (16 + 9). * * * * * While mathematically equivalent, a simpler description is: 12, 22, 32, 42, 52 ...

In a series of numbers, there are rhythms that change. In the order of 100, 140, and 40, the number that would come next would be 80 because 40 should be added.

how the hell should we know?

early 2011

30

Since this appears to be the start of the Fibonacci sequence, the next number would be 21, which is found by adding the two previous numbers (8 + 13 = 21).

1Another AnswerEach number of the series appears to double as the series progresses: 1/12 (x2), 1/6 (x2), 1/3 (x2), 2/3, etc. This being so, the next number in the series would be 4/3 or 1-1/3 (2/3 x 2)..