Which one set of letters when sequentially placed at the gaps in the given letter series shall complete it?
1. ___ utt ___ tt ___ ttu ___
Answer (a). t, u, u and t. The sequence is: tut tut tut tut.
2. a __ cdd __ bcd __ abc __ dab __
Answer (a).. The sequence is: abcd d abcd d abcd d abc.
3. cc ___ ccbc ___ accbcc ___ c ___ b
Answer (a). a, c, a and c. The sequence is ccaccb ccaccb ccaccb.
4. H ___ JH ___ IJHHI ___ HH ___ JH
Answer (a). I, H, J and I. The sequence is HIJH HIJH HIJH HIJH.
5. ZYX ___ W ___ YZZ ___ XWWXY ___
Answer (a). W, Y, X and Z. The sequence is ZYXW WXYZ ZYXW WXYZ.
6. a __ da __ dd __ ad __ a
Answer (d). d, a, a and d. The sequence is adda adda adda
7. a __ n __ b __ __ ncb __ __ ncb
Answer (a). b, c, a, b, a and b. The sequence is abncb abncb abncb.
8. __ aa __ ba __ bb __ ab __ aab
Answer (c). b, b, a, a and b. The sequence is baab baab baab baab.
9. m __ pm __ p __ ap __ a __ ma __
Answer (b).a, a, m, m, p and p. The sequence is map map map map map.
10. p __ r __ qpp __ r __ qp
Answer (a). The sequence is pqr rqp pqr rqp.
11. __ n m m n __ m m n n __ m n n m __
Answer (a). n, n, m and m. The sequence is nnmm nnmm nnmm nnmm.
12. __ op __ mo __ n __ __ p n m o p __
Answer (d). m, n, p , m, o and n. The sequence is mopn mopn mopn mopn.
13. a b __ __ b a a __ __ a b __
Answer (c) a, a, b, a and a. The series is aba aba aba aba.
14. ab __ aa __ aaa __ a __ ab __ a
Answer (d). a, b, b, a and a. The sequence is abaa abaa abaa abaa.
15. a __ bba __ aab __ aa __ abba __
Answer (a). The sequence is aab baa aab baa aab baa