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Aptitude | Series | Question 12

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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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Last Updated : 28 Jun, 2021
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