In this type of questions, usually, 5 groups of letters are given. Four of them are similar to each other in some manner while one is different and this is to be chosen.

1)

In the following question, four groups of letters are given, out of which three are alike in a certain way while one is different. Choose the odd one.


A) SSTO

B) OOTU

C) TTOU

D) USTO

Answer:

Option D

Explanation:

In all other groups, one letter occurs twice.