Which pair of numbers comes next 17 17 34 20 20 31 23?
26 23
34 20
23 33
27 28
23 28
Correct Answer : E
Look at this series: 15, __, 27, 27, 39, 39,...What number should fill the blank?
Which pair of numbers comes next 13 29 15 26 17 23 19
Which pair of numbers comes next 7 9 66 12 14 66 17