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Question

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

Number/Symbol3#8$7&6*4^29@
CodeBSDFGHJKLPRWM

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, then the code of the second element will be the code for the third element.
What will be the code for the following group?
849@

The correct answer is

DLLM

Solution:

Step 1: Identify the default codes from the table.

  • 8 = D
  • 4 = L
  • 9 = W
  • @ = M

Default Code String: D L W M

Step 2: Check which conditions apply to the group "849@".

  • Check Condition (i): The first element is '8' (a number) and the last is '@' (a symbol). Condition (i) requires the first to be a symbol and the last to be a number. Therefore, Condition (i) does NOT apply.
  • Check Condition (ii): The first element is '8' (an even number). Condition (ii) requires the first to be an odd number. Therefore, Condition (ii) does NOT apply.
  • Check Condition (iii): The second element is '4' (a perfect square) and the third element is '9' (a perfect square). Because both the second and third elements are perfect squares, Condition (iii) APPLIES.

Step 3: Apply the matching condition.

According to Condition (iii), the code for the third element (9) will become the code of the second element (4).

  • The code for '4' is L.
  • Therefore, the code for '9' changes from 'W' to L.

Final Answer: The code for the group 849@ is DLLM.

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Important Questions from Conditional Matrix

  1. Select the option in which the numbers are related in the same way as are the numbers of the following sets.

    (NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into its constituent digits. E.g. 13 – Operations on 13 such as adding /deleting /multiplying etc. to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed)

    (24, 8, 96)

    (36, 4, 72)

  2. Select the set in which the numbers are related in the same way as are the numbers of the following sets.

    (30, 14, 8)

    (84, 12, 36)

  3. Study the following coding system and find the appropriate code for the number group given at the end.

    Excluding the exceptions mentioned below, the digit are to be transformed into letter codes as follows:

    Digit

    0

    1

    2

    3

    4

    5

    6

    7

    8

    9

    Letter Code

    A

    B

    C

    D

    E

    F

    G

    H

    I

    J

    Exeptions:

    i. If a number begins with a nonzero even prime digit, that digit should be coded as E.

    ii. If a number begins with a nonzero odd digit, that digit should be coded as S.

    iii. If a number begins and also ends with nonzero even digits, those two digits at the extreme ends should be coded as K.

    iv. If a number begins and also ends with nonzero odd digits, those two digits at the extreme ends should be coded as J.

    v. If the middle digit of a number is in multiples of 2, that digit should be coded as N.

    vi. if the sum of the digits of a number is divisible by 6, then the second and eighth digits should be coded as Q.

    Number to be coded: 531784062

  4. A group of numbers and symbols is coded using letter codes as per the codes given below and the conditions that follow. Study the given codes and conditions and answer the question that follows.
    Note: If none of the conditions apply, then codes for the respective number/symbol are
    to be followed directly as given in the table.
     

    Number/symbol6%85$&3@#7+496
    CodeSEAJLFWQDPRBUT


    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?
    @ 4 8 5

  5. A 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/Symbol397&2@5%18Δ46
    CodeLCZMDWAPRTFBK

    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? 

    @ 9 7 8 3

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