Question

Identify the term that will replace the ?

$563,647,479,815,?$

• A. $672$
• B. $386$
• C. $279$
• D. $143$

Answer 1

The correct option is D $143$

If we look at the difference between consecutive terms, the pattern is + 84, -168, + 336,
As we can observe the differences have alternate signs and are increasing two times in terms of magnitude.
Hence, the next difference must be $-672$.
So, missing term $815-672=143$
Hence,option $D$ is the correct answer.