SPECIFICATION 

Which of the following letter-clusters will replace the question mark (?) in the given series to make it logically complete?
 WUT, RPO, MKJ, HFE, ?

Direction : Each of the questions below consists of a question and three statements numbered I, II and III given below it. You have to decide whether the data provided in the statements are sufficient to answer the question. 

How many students are there is the class?
I. There are more than 22, but less than 36 students in the class.
II. If the students of the class are divided into groups.
III. There are more than 29, but less than 45 students in the class. 

From the following options, select the word which cannot be formed using the letters of the given word.
FRIENDSHIP 

Select the option that will fill in the blank and complete the given series.
DXB, GSI, JNP, MIW,___

Select the option that is related to the third term in the same way as the second term is related to the first term.
$$ {7\over {50}}:{9\over {82}}:: {13\over170}:?$$

In each of the following questions, certain pairs of words are given, out of which the words in all pairs except one, bear a certain common relationship. Choose the pair in which the words are differently related?

Four clusters have been given out of which three are alike in some manner and one is different. Select the one that is different.

Option