Take a Look at this series :
- = 8 - 4 = 4
- = 27 - 9 = 18
- = 64 - 16 = 48
- = 125 - 25 = 100
- = 216 - 36 = 180
- = 343 - 49 = 294
- = 512 - 64 = 448
Fiest series : 3, 5, 7, 9
Second series : 5, 19, 41, ?
Difference of Second series are 14, 22, 30 etc
Next term is 41+30 i.e equal to 71
Each term of the series is the product of the preceding two terms
So, 5000 is wrong and it must be replaced by (500*50) = 25000
The first numbers increase by 5, 7, 9, 11....
The letters move one step backward.
The last numbers are consecutive odd numbers.
The given sequence is a combination of three series:
i)1st, 4th, 7th terms i.e, 2, 4, 9
ii)2nd, 5th, 8th terms i.e, 3, 6, 12
iii)3rd, 6th, 9th terms i.e, 4, 8, 16
In each one of i, ii, iii, each term is twice the preceding term.
So, 9 is wrong and must be replaced by (4*2) = 8
The difference of the two consecutive numbers are 1, 4, 9, 16, 25, 35.
This is clearly ,
Here 35 is wrong, So our wrong number is 91
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