High-Level Data Interpretation For SBI PO 2020, IBPS PO 2020, LIC AAO 2020, LIC ADO with Free PDF at Smartkeeda

Directions : Study the following pie charts carefully and answer the questions given beside.
 
A complete work is divided into 6 parts P, Q, R, S and T. The pie chart 1 shows the distribution of each part. The pie chart 2 shows the percentage of the P part of the work can be completed by 6 individuals A, B, C, D, E, and F in an equal time.



1
If all the six persons work together then they can complete the whole work in 100 days. Suppose for the first 50 days all work together but after 50 days A, C, and E left the work then in how many days the remaining work will be completed?
» Explain it
A
From the chart 2, The time taken by A to complete 10% of P = The time taken by B to complete 20% of P = The time taken by C to complete 25% of P = The time taken by D to complete 5% of P = The time taken by E to complete 15% of P = The time taken by F to complete 25% of P

The ratio of the work, = A : B : C : D : E : F = 10% of p : 20% of p : 25% of p : 5% of p : 15% of p : 25% of p = 2 : 4 : 5 : 1 : 3 : 5

Therefore, the ratio of there efficiency = 30 : 15 : 12 : 60 : 20 : 12

The total efficiency when all the six persons work together = 30x + 15x + 12x + 60x + 20x + 12x = 149x

According to the question, when all six persons work together then they can complete the whole work in 100 days therefore let the total work = 100 × 149x units

In 50 days, the total units of work done = 149x × 50 units

Remaining work = 149x × 50 units

Now, only B, D, and F work together to complete 149x × 40 units of work

The efficiency of B + D + F = 15X + 60X + 12X = 87X

The total number of days B + D + F will take to do

149x × 50 units of work =  149x × 50  =  149 × 50
87x 87

7450  days = 85  55  days
87 87

Hence, option A is correct.
2
If all the six persons started working together but they were divided into two parts. A, B, and C work together to complete Q part of the work whereas D, E, and F work together to complete R part of the work. Then approximately in how many days they will complete Q and R parts of the whole work? (it is given that C alone can complete Q and R parts of the whole work in 250 days) 
» Explain it
A
The efficiency of C = 12x

From the question, C alone Q and R part of the whole work in 250 days, Q + R part of the whole work = 30% + 20% of the whole work = 50% of the whole work in 250 days

Therefore, C alone can do the whole work in 500 days

Therefore, The total work = 12x × 500 units

Q parts = 30% of 12x × 500 = 1800x

Efficiency of A + B + C = 30x + 15x + 12x = 57x

The total number of days taken by A + B + C TO DO 1800x units of work

1800x  = approximately 31.5 days
57x

R parts = 20% of 12x × 500 = 1200x

The efficiency of D + E + F = 60x + 20x + 12x = 92x

The total number of days taken by D + E + F to do 1200x units of work

1200x  = 13 days
92x

The total number of days taken by them to do Q and R parts of the whole work = 31.5 + 13 = 44.5 days

Hence, option A is correct.
3
Suppose, all of them started working together to complete the whole work but after 10 days from starting A left the work permanently, after next 10 days B left the work permanently , again after next 10 days C left the work permanently. After C left  D, E, and F work till the completion of work. In this way, the work is completed in 130 days. Find the number of days A would have taken if he had worked alone?
» Explain it
C
In the first 10 days, the total units of work done by A + B + C + D + E + F = (30x + 15x + 12x + 60x + 20x + 12x) × 10 = 149x × 10 units 
 
In the next 10 days the total units of work done by B + C + D + E + F = (15X + 12X + 60X + 20X + 12X) × 10 = 119x × 10 UNITS 
 
Again, in the next 10 days the total units of work done by C + D + E + F = (12x + 60x + 20x + 12x) × 10 = 104x × 10 units 
 
Now onwards, only D + E + F work till the last day therefore, the total units of work done by D + E + F in the next (130 – 30)

= 100 days = (60x + 20x + 12x) × 100 = 92x × 100 
 
Total units of work = 1490x + 1190x + 1040x + 9200x = 12920x units 
 
The efficiency of A = 30x 

 
Therefore, the total time taken by A alone to do 12920x units of work

12920x  =  1292  days = 430  2  days
30x 3 3

Hence, option C is correct.
4
If all of the six persons work together then they can complete the P part of the whole work in 125 days. Find the difference between the number of days taken by them if A, B, and C work together to complete the entire work and D, E, and F work together to complete the entire work? (approximately) 
» Explain it
B
P parts of the whole work = 25% of the whole work they all together can complete in 125 days therefore 100% of the whole work = the whole work they can complete in 125 × 4 = 500 days 
 
The total units of work = (30x + 15x + 12x + 60x + 20x + 12x) × 500 = 149x × 500 units 
 
The number of days taken by A + B + C together to do 149x × 500 units of work = 149x × 500/57x days = 1307 days approximately 
 
The number of days taken by D + E + F together to do 149x × 500 units of work = 149x × 500/92x days = 809.78 = 810 days approximately 
 
The required difference = 1307 – 810 = 497 days 
 
Hence, option B is correct.
5
What part of the work is completed by A if he works alone for the same number of days taken by B, C, D, E and F together to complete the whole work?
» Explain it
C
The efficiency of A = 30x

And the efficiency of B + C + D + E + F = 119x

The reqd. % =  30x × 100  = 25.21%
119x

Hence, option C is correct.


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In this article we will discuss What is Data Interpretation, How its important for Bank PO and Clerk Exams.

What is Data Interpretation and how its useful for IBPS PO, IBPS Clerk, LIC, NABARD 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 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 Data Interpretation 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 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 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 Data Interpretation Questions & Answers for 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. The 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, 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 full mock test at Testzone to improve your problem-solving skills. Questions that have appeared in the previous IBPS PO 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 alternate strategies that can help you improve your speed and accuracy.
 
At Smartkeeda you can attempt High Level Data Interpretation quizzes and download (DI) PDF for free.