group of numbers/symbols is coded using letter codes as per the codes given below and the conditions that follow. If none of the conditions apply, then codes for the respective number/symbol to be followed directly as given in the table.

Number/Symbol 8 9 @ & 5 7 2 % 1 3 Δ 4 6

Code L C Z N D W A P R T F B K

Conditions:
(i) If the first element is a symbol and the last a number, the codes for these two (the first and the last elements) are to be interchanged.
(ii) If the first element is an odd number and the last an even number, the first and last elements are to be coded as ©.
(iii) If both the second and third elements are perfect squares, the third element is to be coded as the code for the second element.
What will be the code for the following group?
7 6 @ 1 3 &

Question

Question

This question was previously asked in

RRB NTPC Graduate Level CBT-I Official Paper (Held On: 09 Jun, 2025 Shift 1)

Answer 1

Given Table:

Number/Symbol	8	9	@	&	5	7	2	%	1	3	Δ	4	6
Code	L	C	Z	N	D	W	A	P	R	T	F	B	K

According to the given condition:

Rule no.	Condition	Result
(i)	First element is a symbol and the last a number	Codes for these two are to be interchanged
(ii)	First element is an odd number and the last an even number	First and last elements are to be coded as ©
(iii)	Both the second and third elements are perfect squares	Third element is to be coded as the code for the second element

Given: 7 6 @ 1 3 &

Here, no rule applies here.

7 → coded as W

6 → coded as K

@ → coded as Z

1 → coded as R

3 → coded as T

& → coded as N

So, 7 6 @ 1 3 & → Coded as W K Z R T N

Hence, "Option 4" is the correct answer.