Question

In the following number series, one term does not fit into the series. Find the wrong term.

$1,5,9,14,25,37,49,65$

• A. $9$
• B. $14$
• C. $25$
• D. $37$

Answer 1

Answer: (B)

$14$

Taking alternate terms, we get two sequences, namely :
$\left(1\right)$ $1,9,25,49$
The differences are $8,16,24$ which increase by $8.$
$\left(2\right)$ $5,14,37,65$
Differences are $9,23,28.$
We can make differences increase by $8$ if $14$ is changed to $17.$
$5,17,37,65$ have differences $12,20,28.$ (each difference term will show difference of 8)