Correct Answer - Option 5 : 389
Given:
312, 320, 311, 436, 389, 1718
Calculation:
Considering the above series, the logic should be
320 - 312 = 8 = (2)3
311 - 320 = -9 = -(3)2
436 - 311 = 125= (5)3
387 - 436 = -49 = -(7)2
1718 - 387 = 1331 = (11)3
After observing the logic we can say the wrong term is 389.
∴ The wrong term in this series is 389.