CAT 2018 LRDI Questions

According to a coding scheme the sentence

Peacock is designated as the national bird of India

is coded as

5688999 35 1135556678 56 458 13666689 1334 79 13366

This coding scheme has the following rules:

1. The scheme is case-insensitive (does not distinguish between upper case and lower case letters).

2. Each letter has a unique code which is a single digit from among 1,2,3, …, 9.

3. The digit 9 codes two letters, and every other digit codes three letters.

4. The code for a word is constructed by arranging the digits corresponding to its letters in a non-decreasing sequence.

Answer these questions on the basis of this information.


Question No. 1:
What best can be concluded about the code for the letter L?
Options:
  1. 1
  2. 1 or 8
  3. 6
  4. 8

Question No. 2:
What best can be concluded about the code for the letter B?
Options:
  1. 1 or 3 or 4
  2. 3
  3. 1
  4. 3 or 4

Question No. 3:
For how many digits can the complete list of letters associated with that digit be identified?
Options:
  1. 3
  2. 0
  3. 1
  4. 2

Question No. 4:
Which set of letters CANNOT be coded with the same digit?
Options:
  1. S,U,V
  2. I,B,M
  3. X,Y,Z
  4. S,E,Z

Explanation:

Given 'peacock is designated as the national bird of India' is coded as ' 5688999 35 1135556678 56 458 13666689 1334 79 13366'

9 is the code for o and c from the words peacock and of.

F is coded as 7 from the word of.

I is coded as either 3 or 6 from the word India, but from the word 'is' and 'designated' code for 'I' is 3.

S is coded as 5 from the word is.

A is coded as 6 from the word 'as'.

N is coded as 6 from the word national.

Thus D is coded as 1 from the word India.

E is coded as 5 from the word designated.

T is coded as 8 from the word 'the' and 'National'.

Thus H is coded as 4 from the word 'the'. G is coded as 7. L is coded as 1 from the word 'National'.

P and K are coded as 8 from the word 'peacock'. B and R are coded as 3 and 4 many order from the word 'bird'.

We get the codes as follows

 

.

 

B and R is coded as 3 or 4.

Question 1

L is coded as '1'. Ans : 1

Question 2

Either 3 or 4 is the code for B. Ans : 3 or 4

Question 3

The code for 8 and 9 is identified. Ans : 2

Question 4

S, U, V cannot be coded with same digit.

Ans : S, U, V


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