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Q: What is the next number in the sequence 125 -25 5 -1....?

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the next number in the sequence 1 5 25 125 is 625

Just divide any number in the sequence by the next number in the sequence. To be on the safe side, you may want to check in more than one place - if you get the same result in each case, then it is, indeed, a geometric sequence.

.5,.25,.125

25 is the next number that appears in that sequence.

This is a sequence of perfect squares. 12=1, 22=4, 32=9, 42=16, 52=25. The next number is 62=36.

243

121.

Each is half of the previous number, so 6.25 will be next.

It is obvious that 7 is added to get the next number from the previous one.

The most obvious pattern in the sequence 10 30 15 16 48 24 25 is ...*3,/2,+1... The next number in the sequence following the 25 will be 75.

The next number in the sequence would be 25.

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

25

The next number in the sequence is 27. To get the next number, double the number and add one. Except for the second number, all the numbers in the sequence follow this rule.

.125

There are an unlimited number of multiples of 25, since any whole number multiplied by 25 will give you a multiple of 25. The sequence goes 25, 50, 75, 100, 125, 150, 175, 200, etc.

96. The sequence is: Multiply by 6. Takeaway 6. Multiply by 5. Takeaway 5. Multiply by 4. Takeaway 4 to give you the next [sought for number] in the sequence.

twelve and a half?

I think it is -5

The next number will be 25 because 5 times 5 = 25

This sequence is the squaring of the numbers 1, 3, 5, and 7. The next number is 9^2 = 81.

27

66

25

15

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