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Question

Wrong number in the series 7, 8, 18, 57, 228, 1165, 6996

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2
3
4

Practice Makes A Man Perfect. Comment your solution and approach for this question.

The series is

7*1 + 1 = 8

8*2 + 2 = 18

18*3 + 3 = 57

57*4 + 4 = 232

232*5 + 5 = 1165

1165*6 + 6 = 6996

so 228 is wrong

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Please provide more information - at least 10 characters

Vinay , Student
Commented Feb 26 , 2021

(n+1)*z , z=set of integers

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Radha kumari , BCA from Banasthali Vidyapeeth
Commented Apr 03 , 2020

7*1+1=8, 8*2+2=18, 18*3+3=57, 57*4+4=232, So, 228 is wrong number in the series

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