2, 7, 17, ?, 60, 97
a) 34
b) 38
c) 42
d) 48
e) 51
Sol:
2 + 22 + 1 = 7
7 + 32 + 1 = 17
17 + 42 + 1 = 34
34 + 52 + 1 = 60
60 + 62 + 1 = 97
2, 7, 17, ?, 60, 97
a) 34
b) 38
c) 42
d) 48
e) 51
Sol:
2 + 22 + 1 = 7
7 + 32 + 1 = 17
17 + 42 + 1 = 34
34 + 52 + 1 = 60
60 + 62 + 1 = 97
