# Different Ways of Representing Data

Data representation in the DI section is primarily of two types:
Narration Based
Also known as caselets, these questions often involve stories that define a situation and give details of various parameters involved,including their inter-relationships.
Pictorial
This is the most common form of data representation. In such problems, data is presented in various pictorial forms such as line graphs, bar diagrams, line charts.

# Narration Based

Also known as caselets, these questions often involve stories that define a situation and give details of various parameters involved; including their inter-relationships.

E.g., Mittal has recently acquired four companies, viz., Bank of Bozoland (BOB), My Own Bank (MOB), Zany Obliterated Bank (ZOB) and Dogmatically Obscure Bank (DOB). He noticed that the sales of DOB are half than that of BOB, whereas, the profits of DOB are double than that of BOB. The expenses of ZOB are Rs 3 crores less than that of DOB, whereas, the profits of MOB is Rs 1 crore less than that of ZOB. The expenses of BOB are three times than that of DOB. It is also known that the sales of ZOB are Rs 15 crore or one-fourth of MOBâ€™s sales. All the figures are for 1992â€“93. An insider further informs Mittal that the sales of DOB are Rs 10 crores more than that of ZOB and the expenses of BOB are 90% of its own sales. Sales â€“ Expenses = Profit

Question

The total sales of all the four companies is (Rs crores):

1. 200
2. 150
3. 125
4. 160

# Pictorial

This is the most common form of data representation. In such problems, data is presented in various pictorial forms such as line graphs, bar diagrams, line charts etc.

The important point to remember pertaining to all these questions is the fact that each and every question asked in the CAT is based on some logic and reasoning meant to check your aptitude. Few questions that involve numbers may also require a basic level of calculation skills.

Let us see the various pictorial representation of data:
• Table
• Pie Chart
• Bar Chart/Bar Graph
• Line Chart/Xâ€“Y Chart