Find the next number in the series .
- A
- B
- C
- D
Solution & Step-by-step Explanation
Let's find the differences between the consecutive terms of the series:
*
*
*
Now, let's find the common difference between these first-level differences (the second-level difference):
*
*
The second-level difference is constant and equals . Following this pattern, the next first-level difference will be:
Therefore, the next number in the series is:
*
*
*
Now, let's find the common difference between these first-level differences (the second-level difference):
*
*
The second-level difference is constant and equals . Following this pattern, the next first-level difference will be:
Therefore, the next number in the series is: