The Number which Best Completes the Sequence below is?

2 6 3 8 6 12

The given sequence is an ascending sequence with two different sequences in it.

Answer: The number which best completes the sequence 2 6 3 8 6 12 is 11.

Let us solve it step by step.

Explanation:

2 6 3 8 6 12, __

Let us suppose that the sequence has two different sequences starting with the first 2 and the first 6.

2 3 and 6 -  First Sequence.

6 8 and 12 - Second Sequence.

We have 2 3 6 and 6 8 12 as your two different sequences.

2 3 6 is adding odd numbers starting with one, then three, then five, and so on.

So, 1 is added to 2, then 3 to the previous result, and 5 to the previous result

6 8 12 is formed similarly by even numbers instead.

As the next number belongs to the 2 3 6 sequences, so by adding five, we will get 11. 

Hence, the number which best completes the sequence 2 6 3 8 6 12 is 11.