Which pair of numbers comes next 8 12 9 13 10 14 11?
14 11
15 12
8 15
15 19
8 5
Correct Answer : B
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