Multiple choice

Find the next term of the given series. 3, 7, 15, 31, 63, ___

  1. 127

  2. 136

  3. 146

  4. 151
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A Correct answer
Explanation

The series follows the pattern of doubling the previous term and adding 1, or alternatively, the terms are 2^(n+1) - 1. For the last term, 63 * 2 + 1 = 127.

AI explanation

The pattern in this series is that each number is multiplied by 2 and then 1 is added to find the next number. For example, 3 times 2 plus 1 is 7, 7 times 2 plus 1 is 15, and 31 times 2 plus 1 is 63. Applying this same logic to the last term, 63 times 2 plus 1 equals 127.

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