Which of the following numbers will replace the question mark (?) in the given series?
42, 67, 96, 129, 166, ?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is Option 1 i.e. 207
The pattern is followed as
42, 67, 96, 129, 166, ?
67 - 42 = 25
96 - 67 = 29 (29 - 25 = 4 or 25 + 4 = 29)
129 - 96 = 33 (33 - 29 = 4)
166 - 129 = 37 (37 -33 = 4)
? - 166 = 41 (37 + 4 = 41)
? = 166 + 41
? = 207
Hence, the correct answer is 207.