A group of numbers and symbols is coded using letter codes as per the codes given below and the conditions that follow.

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

Conditions:
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.
If the first element is an odd number and the last an even number, the first and last elements are to be coded as *.
If both 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?
@9385

ZCBTA

ACBTZ

ZBCTA

ACLTZ

APEDIA

NTPC Graduate Tier 1

2025 • 05 Jun, 2025 • Shift-3

A group of numbers and symbols is coded using letter codes as per the codes given below and the conditions that follow.

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

Conditions:

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.
If the first element is an odd number and the last an even number, the first and last elements are to be coded as *.
If both 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?
@9385

Correct Answer

ACLTZ

[Mind Map Analysis]: Let us break down the sequence @9385 systematically.[Condition Mapping]: The first element '@' is a symbol, and the last element '5' is a n......

💡 Analysis & Explanation

[Mind Map Analysis] ▼

Let us break down the sequence @9385 systematically.

[Condition Mapping] ▼

The first element '@' is a symbol, and the last element '5' is a number. This perfectly satisfies Condition (i).

[Execution Phase] ▼

The standard codes are @ = Z, 9 = C, 3 = L, 8 = T, and 5 = A. Because of Condition (i), we must swap the codes of the first and last elements.

[Final Transformation] ▼

Swapping 'Z' and 'A' gives us A-C-L-T-Z.

Conclusion ▼

The accurately derived code string is ACLTZ.

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