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Type the missing number in this sequence:\newline11, _\_, 2525, 125125, 625625, 3,1253,125

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Q. Type the missing number in this sequence:\newline11, _\_, 2525, 125125, 625625, 3,1253,125
  1. Identify Pattern: Identify the pattern in the sequence.\newlineThe sequence is 11, _\_, 2525, 125125, 625625, 3,1253,125. We need to determine if there is a common ratio or a common difference that can help us find the missing number.
  2. Check Type: Check if the sequence is arithmetic or geometric.\newlineAn arithmetic sequence has a common difference between terms, while a geometric sequence has a common ratio. By looking at the given numbers, we can see that each term seems to be a multiple of the previous term, suggesting a geometric sequence.
  3. Calculate Ratio: Calculate the common ratio using the terms provided.\newlineWe can use the terms 2525 and 125125 to find the common ratio. Divide 125125 by 2525 to get the common ratio.\newline125/25=5125 / 25 = 5\newlineCommon Ratio: 55
  4. Find Missing Number: Use the common ratio to find the missing number.\newlineIf we divide 2525 by the common ratio, we should get the missing number.\newlineMissing Number = 255\frac{25}{5}\newlineMissing Number = 55
  5. Verify Pattern: Verify the pattern with the next term.\newlineTo ensure that 55 is the correct missing number, multiply it by the common ratio and check if the result is the next term in the sequence.\newline5×5=255 \times 5 = 25\newlineSince 2525 is the next term in the sequence, our missing number is correct.

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