Page 20 - Services Selection Board (SSB) Interviews
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16                                                                                  Alpha Series Completion
            Ex 2: 1, A, 3, C, 5, E, 7, ?
            Solution: As we follow the pattern we found that the difference between the numbers is 2 and the difference between
            the alphabets is also two. So next be G.

            Ex 3: __ aabab __ ab __ ab __ bba
                  (a)  bbaa              (b)  baaa               (c)  abaa              (d)  abba
                                                                       ,
            Solution: Option (a) which justifies the pattern, as  b  aab, ab b  a b a  ab, a  bba
            Ex 4:  aa __ baa __ aaa __ ba __ ba
                  (a)  abba              (b)  abab               (c)  abaa              (d)  babb

            Solution: Option (c) the pattern, as aa a  ba , a b  a
            Ex 5: C2E,  E5H,  G12K,  127N, ?

                  (a)  I58P              (b)  J58Q               (c)  K58Q              (d)  I57Q
            Solution: The series follows for patterns.
                                    2,    5   , 12   , 27   , 58
                       For Numbers :
                                       3      7     15    (15×2+1)=31

                                    C    D     E    F    G    H     I   J    K    L    M     N    O     P    Q     R
                       For Alphabet :

                                         I            II           III        IV               V
                                                                  Option (c)
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