Look at this series: 1.5, 2.3, 3.1, 3.9, ... What number should come next?
4.2
4.4
4.7
5.1
Look at this series: 14, 28, 20, 40, 32, 64, ... What number should come next?
52
56
96
128
Look at this series: 201, 202, 204, 207, ... What number should come next?
205
208
210
211
Look at this series: 544, 509, 474, 439, ... What number should come next?
404
414
420
445
Look at this series: 80, 10, 70, 15, 60, ... What number should come next?
20
25
30
50
Look at this series: 2, 6, 18, 54, ... What number should come next?
108
148
162
216
Look at this series: 1000, 200, 40, ... What number should come next?
8
10
15
$ #
$ $
o o
o *