Multiple choice

Choose the correct alternatives from given ones that will complete the series. 101, 109, 118, 126, 135, ?

  1. 147

  2. 146

  3. 143

  4. 153
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The pattern involves adding the sum of digits to each number. 101 + (1+0+1) = 103, but the series shows 109. The actual pattern is: add 8, then 9, then 8, then 9 alternately. 101 + 8 = 109, 109 + 9 = 118, 118 + 8 = 126, 126 + 9 = 135. Following the pattern, add 8 to 135 to get 143.

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