20
The next number is 2.
It is 5n+2 and so the next number is 22
The range of 10, 13, 22, 25, and 31 is 21.
Because of the pattern of plus 11 then minus ten I would go with 13 24 14
6
13 18 16 21 19 24 22 27 25 ... . This series consists of adding 5 to the first number and subtracting 2 from the next number, repeating the sequence in that order.
The next number in the series 1 2 4 8 10 20 22 is
550
The next number is 17. You're adding 8, and then subtracting 5. So; 2 + 8 = 10 10 - 5 = 5 5 + 8 = 13 etc... 19 - 5 = 14 14 + 8 = 22 22 - 5 = 17
25-1=24 24-2=22 22-3=19 19-4=15 15-5=10 The next number in the series is 10.
20
12
20
18
500
Hi