10
explanation:
from 60 to 30 you multiply by 1/2
from 30 to 20 you multiply by 2/3
from 20 to 15 you multiply by 3/4
from 15 to 12 you multiply by 4/5
from 12 to 10 you multiply by 5/6
4
10
What would be the next number in this series 15 12 13 10 11 8?
10.
The series seems to be "add 3," so the next number in the series would be 12 followed by 15.
15
11
10 ten
The next number in the sequence is 15. The pattern is as follows: from 1 to 6 is +5, from 6 to 9 +4, from 9 to 12 +3, from 12 to 14 +2, and then from 14 to the answer (15) +1.
I think the answer is 14, because is a combination of 3 series 7 12 6 15 12 ?? |______| (8 units of difference) |______| (0 units of difference - filler) |_____ 14 (8 units of difference)
Since each number is one less than the one before it, the next number would be 8.
The next number could be 26 The next number could be 12 - - - - - - - - - The next number that is in the sequence is 12.