It could be almost anything. One possibility is 36.
The next is 3.
The given pattern appears to alternate between two sequences: one sequence that doubles the previous number (3 to 6 to 12) and another that adds 1 to the previous number (4 to 20). Following this pattern, after 20, the next number in the doubling sequence would be 24, as it continues from 12. Thus, the next number in the pattern is 24.
If the last number is 1/3 (it should be), the next number is 5 and 1/3
10
No, the sequence 3, 6, 12, 24 is not an arithmetic sequence. In an arithmetic sequence, the difference between consecutive terms is constant. Here, the differences are 3 (6-3), 6 (12-6), and 12 (24-12), which are not the same. This sequence is actually a geometric sequence, as each term is multiplied by 2 to get the next term.
The next is 3.
612
8 and then 1.6
25
96 (each number is twice the previous)
A single number, such as 4642142824816 does not constitute a sequence.
16
21
The given pattern appears to alternate between two sequences: one sequence that doubles the previous number (3 to 6 to 12) and another that adds 1 to the previous number (4 to 20). Following this pattern, after 20, the next number in the doubling sequence would be 24, as it continues from 12. Thus, the next number in the pattern is 24.
If the last number is 1/3 (it should be), the next number is 5 and 1/3
Think it's 30...then 20
10