Letter and Symbol Series Questions

• a__b__a__ __n__bb__abbn
• __cb__cab__baca__cba__ab
• a—baa—aaba—ca—b
• cab — c — bdca — d — abd
• a _ b_ b a _ b _ _ b a
• d __ n __ __ __nndm __n
• a ___ b a ___ b b ___ a b ___ a
• p_ _p _ _ p q r p _ r
• _bc c _ a abc _ ba ab _
• b_ f_ _ _ dfg_
• __ ab__a__bba__bb_a_b
• Which one set of letters when sequentially placed at the gaps in the given letter series shall complete it? a _ ca _ ca _ caa _
• ac __ bd __ cc __df __ egh
• __ ab__b__aba __ __abab
• r___ sr ___ tsrrt ___ rr ___ sr
• ab-abc-bc-bca-c
• w__xw__x__ax__a__wa__
• m _ n m _ n _ a n _ a _ m a _
• a__ __b abba__abb a__ba
• c – bba – cab – ac – ab – ac