What should come in place of the question mark (?) in the given series?
55, 64, 81, 106, 139, ?
Given:
55 64 81 106 139 ?
Logic:
The DOUBLE difference between consecutive terms is 8.
Explanation (applied left to right):
64 - 55 = 9
81 - 64 = 17
106 - 81 = 25
139 - 106 = 33
The differences are increasing by 8 each time (9, 17, 25, 33). So, the next difference will be 33 + 8 = 41.
Now, add this difference to the last number:
139 + 41 = 180.
Final Answer:
180
Final Correct Option:
(B)
English
100 Questions
100 Marks
90 Mins English English100 Questions100 Marks90 Mins English English10 Questions10 Marks5 Mins English
What should come in place of the question mark (?) in the given series?
591, 592, 596, 605, 621, ?
What should come in place of the question mark (?) in the given series?
55, 64, 81, 106, 139, ?
What should come in place of the question mark (?) in the given series?
187, 175, 160, 141, 117, ?
What should come in place of the question mark (?) in the given series?
52, 64, 79, 97, 118, ?
