The number which best completes the sequence below is 20 5 30 6 42 7
If the sequence is 205, 306, 427 then a possible 4th number is 568. The initial difference between 205 and 306 is 101, which increases by 20 at each step. 306 → 427 = 121 : 427 → 568 = 141
54
next in the sequence: 10,20,30,20
13 20 12
A number sequence is not a question. So there can be no "answer".
20
10
The next number in the sequence will be 56.
320
1, 10, 2, 20, 3, 30, 4, 40, 5, 50, and so on.
17 19 20