Aptitude | Series | Question 13

Find wrong number in series:

2, 8, 12, 20, 30, 42, 56, 72
(A) 8
(B) 20
(C) 42
(D) 72


Answer: (A)

Explanation: 2+4=6, 6+6=12, 12+8=20, 20+10=30, 30+12=42, 42+14=56, 56+16=72

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