# DI for SBI Clerk, RBI Assistant, LIC Assistant, NRA CET, IBPS Clerk with Smartkeeda

Directions : Study the following bar chart carefully and answer the questions given beside.

The bar graph given below shows the percentage distribution of the number of books of different types (A, B, C, D and E) sold by a book shop in the year 2015.

Note : The difference between the types A books sold and type E books sold by the shop in year 2015 = 84

Percentage sale of books of different types by a shop in year 2015

Important for :
1
Find the ratio of the number of type B books sold to the type C books sold in a year by the shop.
» Explain it
C
Let the total books sold in a year be ‘x’

So, 0.15x – 0.13x = 84

x = 4200

 Type of Book Number of books sold in a year A 15% of 4200 = 630 B 20% of 4200 = 840 C 24% of 4200 = 1008 D 28% of 4200 = 1176 E 13% of 4200 = 546

So, required ratio = 840 : 1008 = 5 : 6

Hence, option C is correct.
2
Find the average number of type D books sold in each month by the shop.
» Explain it
A
Let the total books sold in a year be ‘x’

So, 0.15x – 0.13x = 84

x = 4200

 Type of Book Number of books sold in a year A 15% of 4200 = 630 B 20% of 4200 = 840 C 24% of 4200 = 1008 D 28% of 4200 = 1176 E 13% of 4200 = 546

 So, reqd. average = 1176 = 98 12

Hence, option A is correct.
3
The number of type B books sold in 2016 was 15% less than that of previous year. Find the number of type B books sold in 2016 by the shop.
» Explain it
A
Let the total books sold in a year be ‘x’

So, 0.15x – 0.13x = 84

x = 4200

 Type of Book Number of books sold in a year A 15% of 4200 = 630 B 20% of 4200 = 840 C 24% of 4200 = 1008 D 28% of 4200 = 1176 E 13% of 4200 = 546

So, required number of type B books sold in 2016 by the shop = 85% of 840 = 714

Hence, option A is correct.
4
The number of type A books sold in 2015 is what percent less than the number of type B sold in 2015?
» Explain it
C
Let the total books sold in a year be ‘x’

So, 0.15x – 0.13x = 84

x = 4200

 Type of Book Number of books sold in a year A 15% of 4200 = 630 B 20% of 4200 = 840 C 24% of 4200 = 1008 D 28% of 4200 = 1176 E 13% of 4200 = 546

 So, reqd. percentage = 840 – 630 × 100 = 25% 840

Hence, option C is correct.
5
Find the average number of books sold of each type in the year 2015.
» Explain it
E
Let the total books sold in a year be ‘x’

So, 0.15x – 0.13x = 84

x = 4200

 Type of Book Number of books sold in a year A 15% of 4200 = 630 B 20% of 4200 = 840 C 24% of 4200 = 1008 D 28% of 4200 = 1176 E 13% of 4200 = 546

 So, reqd. average = 4200 = 840 5

Hence, option E is correct.

### Data Interpretation for SBI Clerk, RBI Assistnat, LIC Assistant with PDF at Smartkeeda

In this Data Interpretation for SBI Clerk 2021 we will discuss What is Data Interpretation, How it's important for Bank clerk Pre Exams.

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What is Data Interpretation and how its useful for SBI Clerk Pre 2021, IBPS Clerk Pre 2021, RBI Assitant, LIC Assistant, IBPS RRB  2021 Etc

In our day-to-day life, data is reported in the newspapers, on television, and in magazines. The data involves business, government, sports and many other topics. It is represented in an organized fashion, making it easy to interpret what you hear and read in the media. Those set of problems is being asked in a different kind of form like Pie Chart di, Bar Chart di, Table Chart di, line chart di and info chart etc.
Now come back to the point data interpretation,  Data has to be well organized for it to be useful. This process of interpreting and analysing data to extract meaningful information from it is Data Interpretation. Solving DI problems involves the use of basic formulas and manipulation of numbers.

Data Interpretation is calculation-intensive. It consists of a myriad of graphs, charts and tables form which you have to glean and analyse data. The key to cracking this area is to quickly identify the key pieces of data that you require to work on the questions asked.
Problems in High Level Data Interpretation are probably the closest in resemblance to the kind of problems you will be dealing with as a manager. They test your decision-making ability and speed using the minimum possible data. They help you to draw conclusions from collected data, support decision making and contribute to the better process, product, and quality models.

Data Sufficiency problems involve testing your quantitative concepts. They usually take the form of a logical puzzle. Instead of solving a data sufficiency problem, all you need to do is determine if the given information is enough to solve the problem. To solve DI Questions & Answers for SBI Clerk Banking and Insurance Exams like SBI, IBPS, NABARD & RBI Grade B, NIACL, and LIC, you need to brush up your calculation skills; you need to perform calculations faster and accurately than others. Difficult Data interpretations should be solved within 10-12 minutes. The DI of moderate level should not consume more than 7-9 minutes of the time and easy DI's should be finished within 3.5-4 minutes.

In these, Data Interpretation Quizzes and PDF, you familiarized yourself with the key concepts and improved your problem-solving abilities. At Smartkeeda you will get Easy level data interpretation to High-level data interpretation at low cost. Practice and tests are important to optimize your preparation. First, take the quizzes regarding your exams and take a full mock test at Testzone to improve your problem-solving skills. Questions that have appeared in the previous IBPS clerk exams are also a part of these quizzes. Go through them you can understand where the focus lies in an examination environment. The detailed solutions of the questions may provide some alternative strategies that can help you improve your speed and accuracy.