Question : Directions: In the following question, select the missing number from the given series.
123, 125, 127, ?, 131, 133
Option 1: 128
Option 2: 129
Option 3: 130
Option 4: 145
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Correct Answer: 129
Solution :
Given:
123, 125, 127, ?, 131, 133
Add 2 to the previous term to get the next term.
123 + 2 = 125; 125 + 2 = 127; 127 + 2 = 129; 129 + 2 = 131; 131 + 2 = 133
So, 129 is the missing term in the series. Hence, the second option is correct.
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