Multiple choice

In the following question, select the missing number from the given series. 129, 126, 123, 120, 117, ?

  1. 113

  2. 114

  3. 112

  4. 115
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B Correct answer
Explanation

The series is 129, 126, 123, 120, 117. This is an arithmetic progression with a common difference of -3. The next term is 117 - 3 = 114.

AI explanation

The series follows a simple subtraction pattern where each term is decreased by 3 to get the next term. For instance, 129 minus 3 is 126, and 126 minus 3 is 123. Continuing this pattern, subtracting 3 from the last term 117 yields 114.

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