9,3,18,6,36,12.....Missing letter in this series.

Question

Shea Daniels · Accepted Answer

Recognize the pattern in the question that is being asked.
We have, the series is

9, 3, 18, 6, 36, 12 . . . . .

There are two patterns in the given series.
First pattern is

9, 18, 36

This pattern follows:

9 + 9 = 18, 18 + 18 = 36

( addition of the preceding terms to itself to get the next term in the series)
The second pattern is

3, 6, 12

Therefore, the pattern follows:

3 + 3 = 6, 6 + 6 = 12

( addition of the preceding terms to itself to get the next term in the series)
Find the missing term
For the first pattern;

36 + 36 = 72

(

36

is the last given number in the first pattern of the series, so we need to add

36

to itself to get the next term in the series)
For the second pattern;

12 + 12 = 24

(

12

is the last given number in the second pattern of the series, so we need to add

12

to itself to get the next term in the series)
Hence, the missing numbers are

72

and

24

So, the series is

9, 3, 18, 6, 36, 12, 72, 24, \dots

Missing letter in this series. 9,3,18,6,36,12