The series given below contains a sequence of numbers. Accordingly identify the INCORRECT number.
40, 40, 37, 31, 21, 10
Show answer & explanation
Correct answer: D
Explanation
Series: 40, 40, 37, 31, 21, 10
Pattern:
40 → 40 = 0
40 → 37 = −3
37 → 31 = −6
31 → 21 = −10 (wrong)
21 → 10 = −11
Differences should follow:
0, −3, −6, −9, −12 (multiples of 3)
But 21 does not fit this pattern; hence, it breaks the pattern.
Option (4) is the correct answer.