In the following question, which set of letters and numbers, when sequentially placed at the gaps in the given series, shall complete it?
1_2x_bb_yy_cc_6zzz1
a345c
2
3a45b
3
3a4b5
4
3a45c
In the following question, which set of letters and numbers, when sequentially placed at the gaps in the given series, shall complete it?
1_2x_bb_yy_cc_6zzz