Answer:
1. 16, 19, 21
2. 81, 243, 729,
3. 25, 31
4. 20/24, 19/24
5. 37
Explanation:
1. The numbers are going up by +3 ( 1 + 3 = 4, 4 + 3 = 7 etc..)
2. The numbers are being multiplied by 3 ( 3 x 3 = 9, 9 x 3 = 27 etc..)
3. Numbers are going up by +2
4. Numbers are decreasing by 1/24 ( 23/24 - 1/24 = 22/24 etc..)
5.
12 - 7 = 5
22 - 12 = 10 (5*2)
82 - 57 = 25 (5*5)
We can see a pattern here and the pattern is that the numbers are increasing according to the x5.
Hence 22 + (5*3) = 37