Question

Find the next term of the series. question. 21,31,22,74?​

Answer 1

Answer:

1st rule:

21,31,22,74 => 12, 13, 22, 47

12 + 1^2 = 13

13 + 3^2 = 22

22 + 5^2 = 47

47 + 7^2 = 96

96 => 69

=> next number after 74 is 69

2nd rule:

21, 31, 22, 74

21 + 31 + 22 = 74

31 + 22 + 74 = 127

=> next number after 74 might also be 127