# GATE2014 EC-3: GA-6

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Find the next term in the sequence: $7G, 11K, 13M$, _________.

1. $15Q$
2. $17Q$
3. $15P$
4. $17P$

edited

7G - G is the 7th alphabet
11K - K is the 11th alphabet
13M - M is the 13th alphabet

15th alphabet is O
17th alphabet is Q
Therefore A,C,D eliminated
Also, 7,11,13 are prime numbers, next prime in the sequence would be 17

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one good way to solve these questions is write down the letters and number them .It will hardly take 1.5 min in the exam A B C D E F G H I J K L M N O P Q R S T U V W X Y Z 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 now the question says 7G 11K 13M ..notice the pattern here ..the letters have their corresponding numbers so the next term is 17Q.. SO answer is B
option B

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