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20
3, -6, 12, 4, 20, ?
56
10 The sequence is given by xn = 60/n
Those are the factors of the number 60, in descending order. The next factor is 10.
25 is the next number that appears in that sequence.
20
20
3, -6, 12, 4, 20, ?
The pattern appears to be: subtract 6, add 17, subtract 14, add 9, subtract 7. Following this pattern, the next number should be obtained by adding 3 to the last number in the sequence, which is 6. Therefore, the next number in the sequence is 9.
56
next in the sequence: 10,20,30,20
10 The sequence is given by xn = 60/n
16
Those are the factors of the number 60, in descending order. The next factor is 10.
22
The next number in the sequence will be 56.