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In questions A and B, there are four groups of letters in each set. Three of these sets are like in some way while one is different. Find the one which is different.

A. (a) C R D T (b) A P B Q (c) E U F V (d) G W H X

B. (a) H K N Q (b) I L O R (c) J M P S (d) A D G J

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A. (a) C R D T (b) A P B Q (c) E U F V (d) G W H X

The four groups of letters are

CRDT APBQ EUFV GWHX

The above can be written as

We find that when we take 1st & 3rd letter & 2nd & 4th letter as 2 pairs, the 3rd letter is the next letter alphabetically to the 1st letter.

Similarly the 4th letter is alphabetically the next letter of the 2nd letter.

i.e CD, AB, EF, GH & PQ, UV, WX

Only in CRDT, we have T instead of ‘S’. So, in CRDT ⇒ Option (a)

B. The four groups of letters are

HKNQ ILOR JMPS ADGI

If we notice, we find that 2 letters are missing in the sequence, ie.

HIJKLMNOPQ IJKLMNOPQR

LKLMNOPQRS ABCDEFGHI

We find that only in ADGI, the difference is only one letter between G & I.

Hence it is the odd one out.

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