Logical Reasoning and Data Interpretation (LRDI) in CAT or any other nonCAT exam, is about analyzing and interpreting data and bringing it to a meaningful conclusion. The huge pile of data needs to be sanitized, categorized, and then simplified into some information that can help in decision making. As a future manager, you need to understand how to translate this data into relevant information and figures.
LRDI in CAT, XAT, and other exams have questions on Tables and Caselets every year. Data is given in the form of statements in Caselets, which is then converted into a table and then solved.
Year  No of Sets  No of Questions  Good attempt  Difficulty  
2019  Slot 1  4  16  12  Moderate 
Slot 2  3  12  10  Moderate to Difficult  
2018  Slot 1  5  19  15  Easy to Moderate 
Slot 2  5  20  16  Moderate 
Year  No of Sets  No of Questions  Good attempt  Difficulty 
2020  3  10  6  Difficult 
2019  2  6  4  Moderate 
SNAP – Questions on Tables and Caselets in SNAP range from 1 to 2. SNAP follows a slightly different pattern. Small caselets of a single question each may also be present.
Year  No of Sets  No of Questions  Good attempt  Difficulty 
2019  2  8  5  Moderate 
2018  2  8  6  Moderate 
MAT – The pattern and difficulty level of MAT is different from all the abovementioned exams. There are no Caselet type questions. Data is usually given in the table itself. All the questions are pretty much straightforward.
Year  No of Sets  No of Questions  Good attempt  Difficulty 
2020  1  5  4  Easy 
2019  1  5  45  Easy 
There are two types in which Caselets are prepared. Caselets and Tables questions in CAT, XAT, SNAP, etc. are of the following types:
1. Reasoning based paragraph – Caselets of this type tests the application of various Reasoning concepts. Few types of caselet within this category are:
1.1. Sitting Arrangement – In this type, few people or things are arranged, and information is given in the form of relative positioning. You are supposed to decode their positions and answer the questions based on that
1.2. Games and Tournaments – Caselet with the information of different players, rules of the game, and the number of matches played or to be played are given. You must interpret this information and answer the questions that follow
2. Numerical Data based paragraph – This type of Caselet usually comes under the Data Interpretation part of different exams. There are no set concept or type for such caselets, it can be any data from which information needs to be extracted. The next step is to form the Table and solve the question
Question 1 – A supermarket has to place 12 items (coded A to L) on shelves numbered 1 to 16. Five of these items are types of biscuits, three are types of candies and the rest are types of savories. Only one item can be kept on a shelf. Items are to be placed such that all items of the same type are clustered together with no empty shelf between items of the same type and at least one empty shelf between two different types of items. At most two empty shelves can have consecutive numbers.
The following additional facts are known:
Total number of Biscuits = 5
Total number of Candies = 3
So, Total number of Savouries = 12 – 5 – 3 = 4
From point iii) and iv) it is clear that D, E, F and K are 4 savouries and are kept in shelves numbered 13,14, 15 and 16 as there is no empty shelf between items of the same type.
From point II), V and VII) I, J and L are of the same type L being in the least numbered shelf among 3.
As from point VI,) C is candy so I, J and L must be Biscuits as there are only 3 candies.
From point V) H is not Biscuits so it must be a candy thus A and B must be Biscuits. Now Item can be placed as given below.
Case 1) when all biscuits are placed after candies.
Case 2) When all candies are placed after biscuits.
 1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16 
Case 1 

 C  H/G  G/H 
 L  A  B  I/J  J/I 
 D  E  F  K 
Case 2 
 L  A  B  I/j  J/I 

 C  H/G  G/H 
 D  E  F  K 
Question 2: Six players – Tanzi, Umeza, Wangdu, Xyla, Yonita, and Zeneca competed in an archery tournament. The tournament had three compulsory rounds, Rounds 1 to 3. In each round, every player shot an arrow at a target. Hitting the center of the target (called bull’s eye) fetched the highest score of 5. The only other possible scores that a player could achieve were 4, 3, 2, and 1. Every bull’s eye score in the first three rounds gave a player one additional chance to shoot in the bonus rounds, Rounds 4 to 6. The possible scores in Rounds 4 to 6 were identical to the first three.
A player’s total score in the tournament was the sum of his/her scores in all rounds played by him/her. The table below presents partial information on points scored by the players after completion of the tournament. In the table, NP means that the player did not participate in that round, while a hyphen means that the player participated in that round and the score information is missing:
 Round1  Round2  Round3  Round4  Round5  Round6 
Tanzi  –  4  –  5  NP  NP 
Umeza  –  –  –  1  2  NP 
Wangdu  –  4  –  NP  NP  NP 
Xyla  5  5  5  1  5  – 
Yonita  –  –  3  5  NP  NP 
Zeneca  –  –  –  5  5  NP 
As from the table given we can see that Xyla had played all the six rounds in he had scored 5 points in each of first 3 rounds. Similarly Tanzi and Yonita each had hit one bull’s eye score in first three rounds, Umeza and Zeneca had two bull’s eye score in first 3 rounds while Wangdu didn’t had any bull’s eye score. So this information can be tabulated as below: (Name of players have been represented by first letter of their name )
 Round1  Round2  Round3  Round4  Round5  Round6  Total 
T  a  4  c  5  NP  NP  x 
U  –  –  –  1  2  NP  x 
W  –  4  –  NP  NP  NP 

X  5  5  5  1  5  – 

Y  –  –  3  5  NP  NP  x 
Z  a  –  d  5  5  NP 

 Round1  Round2  Round3  Round4  Round5  Round6  Total 
T  5  4  1  5  NP  NP  15 
U  2  5  5  1  2  NP  15 
W  4  4  4  NP  NP  NP  12 
X  5  5  5  1  5  4  25 
Y  2  5  3  5  NP  NP  15 
Z  5  5  4  5  5  NP  24 
Question 3 – 600 satellites were sent up by a country for several purposes. The purposes are classified as broadcasting (B), communication (C), surveillance (S), and others (O). A satellite can serve multiple purposes, however, a satellite serving either B, or C, or S does not serve O. The following facts are known about the satellites:
1. The numbers of satellites serving B, C, and S (though maybe not exclusively) are in the ratio 2:1:1
2. The number of satellites serving all three of B, C, and S is 100
3. The number of satellites exclusively serving C is the same as the number of satellites exclusively serving S. This number is 30% of the number of satellites exclusively serving B
4. The number of satellites serving O is the same as the number of satellites serving both C and S but not B
Q1) What best can be said about the number of satellites serving C? [CAT2018/ SlotII]
It is given that a satellite serving either B, or C, or S does not serve O. So we can say that it’s basically 3 satellites broadcasting (B), communication (C), surveillance (S) which can have intersections. Those satellites which are not part of any category are placed in others. We can draw the Venn diagram as follows:
Preparing any topic from the scratch requires patience, hard work, and above all commitment. Tables and Caselets, not only require a thorough knowledge of all the concepts, but they also require a few tricks and shortcuts to be followed. Here are some Levelwise preparatory guidelines to follow:
Level – 1
Level – 2
Level – 3
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