Question

In the following alphabetical series, a combination of two alphabets is missing, denoted by the question marks (??). Choose the missing term from the given options.

HH, IG, KE, NB, ??

• A. OX
• B. QY
• C. RX
• D. SW

Answer 1

The correct option is C

RX

Look at the first letters in each of the terms:

H, I, K, N

I is next to H,
K is the second letter after I,
N is the third letter after K,
So the first letter in the last term would be the fourth letter after N, which is, R.

Similarly, if we look at the second letters in each term:

H, G, E, B

G is before H,
E is the second letter before G,
B is the third letter before E.
So the second letter in the last term would be the fourth letter before B, which is, X.

Therefore, the last term would be RX.

$H\stackrel{+1}{\to }I\stackrel{+2}{\to }K\stackrel{+3}{\to }N\stackrel{+4}{\to }RH\stackrel{-1}{\to }G\stackrel{-2}{\to }E\stackrel{-3}{\to }B\stackrel{-4}{\to }X$