10 The sequence is given by xn = 60/n
15
Those are the factors of the number 60, in descending order. The next factor is 10.
The next number in the sequence 3-15-6-30-21 is -207.
There really is no way of telling, but my guess is 22.
The next number could be 26 The next number could be 12 - - - - - - - - - The next number that is in the sequence is 12.
10 The sequence is given by xn = 60/n
15
21
Those are the factors of the number 60, in descending order. The next factor is 10.
17?
15
The next number in the sequence 3-15-6-30-21 is -207.
6 12 9 18 15 30 27 54 51
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.
It is 129.
10,20,30,20