In data interpretation, we are given data in the form of visuals, like table, graph, chart, etc. and a set of questions that follow. Mainly, they use percentage , ratio or proportion.

Here, we discuss some commonly asked questions.

### Tables

**Question : **The following table contains the data of train arrival and train departure from a station. Study the table and answer the questions that follow :

a) Find the number of trains that arrived late

b) Find the number of trains that departed late

c) Find the percentage of late arriving trains

**Solution : **

a) Number of trains arriving late = 114 + 31 + 5 = 150

b) Number of trains departing late = 82 + 5 + 3 = 90

c) Percentage of late arriving trains = (150 / 1400) x 100 = 10.71 %

### Bar Graph

**Question : **Study the following bar graph and answer the questions that follow :

Total monthly income = Rs. 50,000

a) What amount is spent on food ?

b) How much more money is spent on clothing and housing together than on transportation?

c) What percent of amount on food is spent as amount on education?

**Solution : **

a) Food = 20 % of expenditure

=> Amount spent on food = 20% of 50,000 = Rs. 10,000

b) Money spent on clothing and housing together = 25 % of Rs. 50,000 = Rs. 12,500

Money spent on transportation = 20 % of Rs. 50,000 = Rs. 10,000

Therefore, more money spent on clothing and housing together than on transportation = Rs. 12,500-10,000 = Rs. 2,500

c) Expenditure on food = 20 %

Expenditure on education = 5 %

Therefore, percent of amount on food spent as amount on education = (5 / 20) x 100 = 25 %

### Pie Chart

**Question : **Study the pie chart below and answer the questions that follow :

The above pie chart shows the sales of four different types of articles in a shop.

a) What is the central angle of type A ?

b) If the total sale is 1200, what is the sale of B ?

c) What is the difference between the central angle of C and D ?

**Solution : **

a) Central angle of A = Percentage of A x 360 degrees = (35 / 100) x 360 = 126 degrees

b) Sales of B = 20 % of 1200 = 240

c) Difference between the central angle of C and D = 40 % of 360 – 5 % of 360 = 35 % of 360 = 126 degrees

This article has been contributed by **Nishant Arora**

Please write comments if you have any doubts related to the topic discussed above, or if you are facing difficulty in any question or if you would like to discuss a question other than those mentioned above.

Please write comments if you find anything incorrect, or you want to share more information about the topic discussed above

## Recommended Posts:

- Data Sufficiency
- Understanding Data Attribute Types | Qualitative and Quantitative
- A subtle guide to get that college internship
- TCS Ninja Interview Experience and Interview Questions
- Deloitte Interview Experience (On-Campus)
- How to crack any Technical Interview
- Samsung Delhi Interview Experience (On-Campus for Software Engineer) - September 2018
- UBS interview experience (on campus)
- American Express (On-Campus Internship, Full Time Offer)
- Cvent Interview Experience(On campus for Internship and Full Time)
- Barclays Investment Bank Pune Interview Experience (On-Campus Interview)
- How to prepare for AMCAT?
- Cerner Interview Experience (Off-Campus) for the role of Software Engineer
- How to attempt Function Coding Questions?