751.  2, 6, 12, ?, 30

752.  Direction: Which one set of letters when sequentially placed at the gaps in the given letters series shall complete . bca_b_aabc_a_caa

753.  36, 34, 30, 28, 24, ?

754.  Direction: In each of the following questions, a series is given, with one/two terms missing. Choose the correct alternatives from the given ones that will complete the series. b 3 P, c 6 R, d 12 T, e 24 V, ?

755.  BDF, JLN, PRT, ?

756.  DFI, KMP, ? , YAD

757.  AB, DC, EF, HG, IJ, LK, ?

758.  10,14,19,25,?

759.  15, 17, 20, 22, 27, 29, ?, ?

760.  M E N I P O ? , ?

761.  a, r, c, s, e, t, g, ?, ?