Select the correct number from the given options that will complete the…
2016
Select the correct number from the given options that will complete the series.
130, 117, 102, 85, ?, 45
- A.
66
- B.
69
- C.
37
- D.
68
Attempted by 27 students.
Show answer & explanation
Correct answer: A
1. Calculate the differences between consecutive terms: 130 - 117 = 13; 117 - 102 = 15; 102 - 85 = 17.
2. Identify the pattern: The differences are consecutive odd numbers increasing by 2 (13, 15, 17...).
3. Subtract the next odd number (19) from 85 to find the missing term: 85 - 19 = 66. (Check: 66 - 21 = 45, which matches the last term).
Final Answer: Option A