Question

wrong no. in following series 13, 14, 27, 45, 68, 109, 177

Answer 1

14 is the wrong number in this series

Answer 2

Answer:

Wrong number in the series is 45.

Step-by-step explanation:

Given:

Series = 13 , 14 , 27 , 45 , 68 , 109 , 177

To find: Wrong number in the series.

If we let first two term of series fix. then the series follows the pattern,

$a_n=a_{n-1}+a_{n-2}$ where n ≥ 3

So, 13 + 14 = 27  ( correct )

14 + 27 = 41 ( incorrect )

if we replace 45 by 41 then further term in series are as follows,

27 + 41 = 68 ( correct )

41 + 68 = 109 ( correct )

68 + 109 = 177 ( correct )

Therefore, Wrong number in the series is 45.