Multiple choice

Complete the series by finding the missing term from the given alternatives. $19, 4, 14, 7, 10, 11, 7, ?$

  1. $16$
  2. $15$
  3. $17$
  4. $23$
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A Correct answer
AI explanation

The given series can be analyzed by splitting it into two alternating sub-series. The odd-positioned terms are 19, 14, 10, 7, which decrease by 5, then 4, and then 3. The even-positioned terms are 4, 7, 11, forming a pattern where the differences increase by 1, as seen with +3 and +4. Following this alternating addition rule, the next term in the even sub-series is 11 + 5 = 16. The result is 16.

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