Question

In each of the following question, select the related number from the given alternatives.
$8$ $:$ $12$ $:$ $:$ $9$ $:$ $13$ $:$ $:$ $10$ $:$ $14$ $:$ $:$ $?$

• A. $15$ $:$ $19$
• B. $14$ $:$ $11$
• C. $11$ $:$ $15$
• D. $8$ $:$ $15$

Answer 1

Answer: (C)

$11$ $:$ $15$

In the given relation the first number of every set is increased by $1$ and second number of that set is $4+$first number.

So by this relation our next set will be $10+1=11$ and $11+4=15$

So option $C$ is correct.