Eight would be the next number.
5
The number that comes next in the series 1 2 2 5 3 10 is 7. You get this number by subtracting the number 3 from the number 10.
The next number in the sequence would be 25.
The Next NumberThe next number is 25 if you use the following pattern: 5, (the number 10), 15 (the first number +10), (the number 10), and the next number is the third number +10 or 25.or you could think of it this way:5, 10 (+5), 15 (+5), -5 (10)The pattern is +5, +5, -5, so the next number would be 15, the next 20, and the next 15.
21
the answer is 6 and the patern is +5 -7
The next number in the series 10, -5, 25, -35, 85, -155 is:
28 (add on the prime number 11)
12
10
5
10