Question

Find the wrong term which does not fit in the series.

$89,78,86,80,85,82,83$

• A. $83$
• B. $82$
• C. $86$
• D. $78$

Answer 1

Answer: (C)

$86$

In the following question there are two series
First series is $78,80,\mathrm{82...}$
$78+2=80$
$80+2=82$
Second is $89,87,85,\mathrm{83...}$
$89-2=87$
$87-2=85$
$85-2=83$
Hence the complete series is
$89,78,87,80,85,82,83$
So the number $86$ is wrong term in the given series.
Hence, option 'C' is correct.