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Find the next number in the series 3, 1, 13, 11, 31, 29,________a.57b.61c.51d.63

Question

Find the next number in the series

3, 1, 13, 11, 31, 29, ________

a. 57
b. 61
c. 51
d. 63

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Solution

The pattern in the series is that each number alternates between adding 10 and subtracting 2 from the previous number.

Starting with 3:

  • 3 - 2 = 1
  • 1 + 12 = 13
  • 13 - 2 = 11
  • 11 + 20 = 31
  • 31 - 2 = 29

Following this pattern, the next operation would be to add 30 to 29, which equals 59. However, this option is not available in the choices given.

Therefore, it seems there might be a mistake in the question or the answer choices.

This problem has been solved

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