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Number Series

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Situation Reaction Test
  1. 13, 25, 61, 121, 205
    1. 323
    2. 326
    3. 324
    4. 313
    5. None of these
Correct Option: D

The pattern of the number series is as given below:

13 + 1 x 12 = 13 + 12 = 25
25 + 3 x 12 = 25 + 36 = 61
61 + 5 x 12 = 61 + 60 = 121
121 + 7 x 12 = 121 + 84 = 205
205 + 9 x 12 = 205 + 108 313


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