Multiple choice

DIRECTION for the question: In the following question, a series is given with term/s missing. Choose the correct alternative to replace the question mark in the given series.5, 6, 9, 15, ?, 40

  1. 22

  2. 25

  3. 28

  4. Can't be determined

  5. None of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The differences between consecutive terms are 1, 3, 6, 10, 15. These differences follow a pattern of adding consecutive integers (1+2=3, 3+3=6, 6+4=10, 10+5=15). Therefore, the next term is 15 + 10 = 25.

AI explanation

The differences between the successive terms of the series form a pattern of consecutive integers. The difference between 5 and 6 is 1, between 6 and 9 is 3, and between 9 and 15 is 6, showing the sequence of differences is 1, 3, 6. These differences themselves increase by 2, 3, and next by 4, meaning the next difference is 6 + 4 = 10. Adding 10 to 15 gives the missing term, resulting in 25.

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