Question

Find the wrong term(s) in the given series -

3, 9, 36, 72, 216, 864, 1728, 3468

• A. 3468
• B. 1728
• C. 864
• D. 216

Answer 1

The correct option is A 3468

$3,9,36,72,216,864,1728,3468$
In the above series;
$3,9/9=1,36/9=4,72/9=8,216/9=24,864/9=96,1728/9=192,3468/9=385.3$
In above series all numbers are divisible by 3 and 2nd no. on-wards all numbers are divisible by 9 except the last number. Last number which $3468$ is not completely divisible by $9$ Thus last number is breaking the series. so Option A is correct answer.