Question

In the following number series, how many 8's are there which are immediately preceded by a number which does not divide it but followed by a number which divides it ?
28283858853282384715838286

• A. $1$
• B. $2$
• C. $3$
• D. $4$

Answer 1

The correct option is C $3$

Divisors of 8 are 1, 2 ,4, 8

so as given,

either 3, 5 ,6, 7 ,9 should come before 8 and 1, 2, 4 or 8 after it

So given series has:

$282838\underset{–}{588}53282\underset{–}{384}7158\underset{–}{382}86$

3 such occurrences

so option C