What should come in place of the question mark (?) in the given series?
129, 128, 124, 115, 99,?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. 74.
Given series: 129, 128, 124, 115, 99,?
The series follows this pattern:
129 - 12 = 129 - 1 = 128
128 - 22 = 128 - 4 = 124
124 - 32 = 124 - 9 = 115
115 - 42 = 115 - 16 = 99
99 - 52 = 99 - 25 = 74
So, the next term in the series is 74.
Hence, 74 is the correct answer.