Multiple choice

Directions: Find the missing term in the following series. 13, 35, 57, 79, 911, ?

  1. 1110

  2. 1112

  3. 1113

  4. 1315
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C Correct answer
Explanation

The series is 13, 35, 57, 79, 911. The pattern is taking the last digit of the previous term and appending the next odd number. 1-3, 3-5, 5-7, 7-9, 9-11, 11-13. The next term is 1113.

AI explanation

The series is formed by concatenating consecutive odd numbers. The terms are 1 and 3 joined to make 13, then 3 and 5 joined to make 35, followed by 5 and 7 making 57, and 7 and 9 making 79. The next term logically joins 9 and 11 to make 911. Following this exact pattern, the final term joins 11 and 13, resulting in 1113.

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