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Aptitude | Series | Question 1

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Find wrong number in series:
12, 25, 49, 99, 187, 395, 789

(A)

789

(B)

187

(C)

99

(D)

49



Answer: (B)

Explanation:

12*2+1 =25
25*2-1 = 49
49*2+1 = 99

99*2-1=197

197*2+1=395
395*2-1 = 789



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Last Updated : 28 Jun, 2021
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