Expert tips to score better in Data Interpretation for SBI Clerk
The SBI clerical cadre (Junior Associate) exam will now be conducted in June/ July 2018. Bearing in mind the syllabus, the candidates are advised to start preparing for the exam right now. As time is money, you should know where to begin; what topics to focus more on and how to approach examination. Every student has his/ her own strategy when it comes to appearing for any test. Some may start off their studies straight away from 100 days before the test. A bunch of aspirants prepare their schedule, once the notification is out. For a few others, fortnight homework would work out. Please find out your true potential; and work hard accordingly as nothing else can substitute your hard work.
Many candidates these days, fail to give due importance to Data Interpretation segment that appears under Quantitative Aptitude section of the SBI Clerk exam. They are of the view that basic knowledge of mathematics can help excel in Data Interpretation. Consequently, the amount of consideration offered towards this topic is negligible. Of course, the Data Interpretation questions are mostly very easy, although the visual seems too lengthy. A good understanding of fundamentals of mathematics is all that is essential for cracking this part. The difficulty level of the questions ranges from easy to moderate.
Going through the previous years’ question papers, one can realize that two sets of Data Interpretation (DI) questions often find its place in Quants section. Seventy percent of the questions are manageable, but the remaining thirty percent are usually time consuming. It is better to attempt them once you are done with the remaining questions of this section because time management is a crucial factor here. So, to have a clear idea of the questions to be left out, one ought to go through the mock series of DI. Attempt the time-consuming ones, only if time is still available after the whole test. Normally, such miracles do not happen. Hence, in this post, we shall see how to score seventy percent marks from DI and raise your overall ranking.
There are a few expert tips to be paid attention to, while you are preparing for DI:
1. Candidates are generally seen hesitant to read the directions put up before the questions because they think it is not required at all. As nobody cannot predict the number of the questions to be attempted, careful reading of the directions has to be done.
2. Having a good analytical understanding of the different mathematical sets of charts, graphs and diagrams:
Candidates should develop the skill to logically interpret the data described through pictorial representations and slightly sophisticated visuals. There are pie diagrams, line graphs, bar graphs, tables, histograms, mixed graphs etc available as mathematical interpretation tools. Caselet questions are also usually seen. All that a candidate should do is systematic scrutinization and interpretations of the data presented and answer the questions with respect to them.
3. While preparing for DI, candidates should try to avoid the use of pen/paper/calculators. Just read all the questions at one go; go through the given visual diagram and make sure you have a look at the specified question again. Now without using pen and paper, the candidate should try to do mental calculation and find out the desired result. This is possible only if you are good at mathematical tables, percentage tables, fraction tables, square and cube tables; and BODMAS.
4. As mentioned earlier, the questions which require more calculations and more time should be avoided in the first attempt. This is mainly because the time you might need to attempt that difficult question, can be put to better use to solve other questions, that you are sure would fetch you hundred percent marks.
5. DI is all about averages, percentages, proportions and ratios:
Before starting their preparation for DI, the candidate needs to be thorough with the basic concepts of mathematics. Without knowing them, it is going to be impossible to solve questions of DI with ease.
6. Approximation is the best trick here.
Once you find out a value, just check if an approximate value is found in the given set of prospective answers. The answer is likely to be correct.
7. Making use of previous calculations
The calculations already done for the 1-2 questions (previously solved questions) can be used for other questions also. It would help to save time and energy. In such a scenario, kindly solve the questions in the sequential order.
8. Can’t be Determined Questions
Sometimes, we find a choice, “Can’t be determined” in the options given. Always understand that such questions are usually quite tricky and an in depth understanding of the concept is necessary to solve them.
Here is a Data Interpretation question from Question paper
for the SBI Clerk recruitment exam conducted in 2015:
Example: Read the following table carefully to answer the given
Number of mobile phones of five different brands sold by five different stores in January 2014
|Mobile Brand/Stores||Nexus||Sony||Samsung||Moto G||HTC|
1. The number of Samsung mobile stores by store D is by what percent more than the number of mobile phones of same brand sold by store A?
Solution: The percentage increase = 1740-1450/ 1450 *100
2. What is the average number of HTC mobile phones sold by stores B, C and D?
Solution: Average= 1820+1840+1490/3
3. The number of Sony mobile phones sold by store C is approximately what percent of the total number of Sony mobile phones sold by all the five stores?
Solution: Tot. No. of phones sold= 1240+1100+1690+1650+1460= 7140
Approximate percent= 1690/7140*100= 23.67
4. What is the difference between the total number of Nexus mobile phones sold by stores A and E together and the total number of Samsung mobile phones sold by the same stores together?
Solution: Difference= (1520+1840)- (1450+1620)
3360- 3070= 290
5. What is the respective ratio between total number of HTC mobile phones sold by stores B and C together and the total number of Moto G mobile phones sold by the same stores together?
Solution: Ratio= (1820+ 1840): (1540+1480)
= 3660: 3020= 183/151
From this solved question, we understand that only basic mathematics calculations are required for solving DI questions. If you know the tables of mathematics well enough, you would easily finish the DI questions within the stipulated time. Not more than 7 minutes should be taken to solve a question like this.
So, keep practicing and take as many mock series as possible.
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