Which pair of numbers comes next 1 10 7 20 13 30 19?
26 40
29 36
40 25
25 31
40 50
Correct Answer : C
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