Select the number from among the given options that can replace the question mark (?) in the following series.
17, 18, 26, 53, 117, ?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 242
Given series: 17, 18, 26, 53, 117, ?
17 + (1)3 = 18
18 + (2)3 = 26
26 + (3)3 = 53
53 + (4)3 = 117
117 + (5)3 = 242
Hence, the correct answer is 242.