In the following letter series, some of the letters are missing (represented by ‘_’ ), which are given in that order as one of the alternatives below it. Choose the correct alternative.

mnonopq_opqrs_ _ _ _ _

In the following letter series, some of the letters are missing (represented by ‘_’ ), which are given in that order as one of the alternatives below it. Choose the correct alternative.

c_bba_cab_ac_ab_ac

In the following letter series, some letters are missing (represented by ‘_’ ), which are given in that order as one of the alternatives below it. Choose the correct alternative.

a_bc_c_abb_bca_

In the following letter series, some of the letters are missing (represented by ‘_’ ), which are given in that order as one of the alternatives below it. Choose the correct alternative.

_c_bd_cbcda_a_db_a

a_bc_a_bcda_ccd_bcd_

In the following letter series, some of the letters are missing (represented by ‘_’ ), which are given in that order as one of the alternatives below it. Choose the correct alternative.

_cb_ca_bacb_ca_bac_d

Which of the following will come in place of the question mark (?) in the following letter-number series?

$M3V,O5U,R7T,T9S,W11R,?$

Which of the following will come in place of the question mark (?) in the following letter-number series?

$B6D, C12I, D20P?$

What will come in place of question mark (?) in the following series?

$X5C, U8F, ?, O17L, L23O$