Multiple choice

Choose the correct alternatives from given ones that will complete the series. $113, 225, 449, ?, 1793$

  1. 897

  2. 789

  3. 987

  4. 978
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A Correct answer
Explanation

This series follows the pattern: multiply by 2 and subtract 1. 113×2-1=225, 225×2-1=449, 449×2-1=897, 897×2-1=1793. Therefore the missing term is 897. This is a multiplication and subtraction series.

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