-->

Number Series 2-1

111, 31, 69, 131, 223, ?
A257
B351
C349
D231


27, 5, 7, 17, 63, ?
A308
B302
C309
D409


350, ?, 61, 89, 154, 280
A52
B51
C60
D62


417, 19, 25, 37, ?, 87
A22
B29
C30
D32


59, 29, 89, 269, 809, ?
A2429
B2448
C2246
D2552


636, 19.5, 21, 33, 67.5, ?
A172.5
B170.5
C170.25
D170


722, 20, 37, 107, 423, ?
A2111
B2109
C2117
D2119


84, 8, 17, 42, ?, 212
A92
B95
C91
D98