During assembly the students are standing in a line. Salman Khan is 21st in order from both the ends. How many boys are there in the class?

In a north facing row of NCC Cadets, Trisha is 9th from the left end and Tina is 12th from the right end. There are 5 cadets between Trisha and Tanya who is equidstant to Tina. Find how many cadets are there in the row?

Directions: The question is based on the positions of English alphabets Which of the following has the same relationship as that of JL: KM?

Directions: In the following question, there is some relationship between the two terms to the left of (: :) and the same relationship holds between the two terms to the right of (: :) is missing which is given in one of the four alternatives given below the question. Find out the term from amongst the alternatives.
JDRC : GGOF : : SPKW : ?

Direction: Study the following arrangement carefully and answer the questions given below.
C 3 # R A T 1 E J $ K @ F U 5 4 V I 6 © D 8 * H N 7 δ 2 W

Which of the following is seventh to the left of the twentieth from the left end of the above arrangement? 

Direction: Study the following arrangement carefully and answer the questions given below.
C 3 # R A T 1 E J $ K @ F U 5 4 V I 6 © D 8 * H N 7 δ 2 W

How many such symbols are three in the above arrangement, each of which is immediately preceded by a number and immediately followed by a letter?

Direction: Study the following arrangement carefully and answer the questions given below.
C 3 # R A T 1 E J $ K @ F U 5 4 V I 6 © D 8 * H N 7 δ 2 W

What should come in place of question mark (?) in the following series based on the above arrangement?
 RTI  $@F 4I6 ? 

Direction: Study the following arrangement carefully and answer the questions given below.
C 3 # R A T 1 E J $ K @ F U 5 4 V I 6 © D 8 * H N 7 δ 2 W

How many such numbers are there in the above arrangement each of which is immediately preceded by a letter but not immediately followed by a letter?