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Aptitude | Series | Question 12
  • Last Updated : 15 May, 2016

Find wrong number in series:
1, -6, 18, -54, 162, -486
(A) 1
(B) -6
(C) 162
(D) -486


Answer: (A)

Explanation: 2*(-3)=-6

-6*(-3)=18

18*(-3)=-54

-54*(-3)=162

162*(-3)=-486

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