Data Interpretation study plan for SBI PO Exam 2014
- Day 1 : Introduction (over)
- Day 2 - 7 : Introductory Practice problems on various types of Data Interpretation models
- (Bar Chart)
- (Pie Chart)
- (Line Chart)
- (Tables)
- Remaining Days upto the exam date : Practice problems of various difficulty levels with shortcuts.
Now lets see an example problem.
A management institute offers MBA with specialization in Marketing, Finance and HR. Among the total number of students in the institute 45% are girls. Number of boys studying Marking is 30% of the total number of boys in the institution which is 297. 40% of the girls are studying HR. Number of boys and girls studying Marketing are in the ratio of 3 : 2. 50% of boys are studying Finance.
Solution :
Basic calculations (you must write these on paper before going to solve the questions....... so that you can easily refer to these while solving the questions.
)
With the first glance, we can understand that the given data is about the students of various courses from an Institute.
According to the given data,
Number of boys in Marketing = 297
Total number of boys in the Institute = (297 x 100) / 30 = 990
Total number of girls in the Institute = (45/55) x 990 = 810
Number of girls studying HR
= 810 x (40/100) = 324
Number of girls studying marketing
= 297 x (2/3) = 198
Number of boys studying finance
= (1/2) x 990 = 495
Number of boys studying HR
= 990 - 297 - 495 = 198
Now we have got enough data to answer the questions.
1. How many girls are studying finance ?
Solution :
Number of girls studying Finance
= 810 - 324 - 198 = 288
2. Number of girls studying Marketing is what percent of the number of boys studying finance ?
Solution :
Required percentage
= (198 / 495) x 100 = 40
3. Number of boys studying Fiannce is what percent of the total number of students in the Institution ?
Solution :
Total number of students in the institute
= 990 + 810 = 1800
Required Percentage = (495 / 1800) x 100 = 27.5
4. What is the respective ratio between number of boys and girls studying HR ?
Solution :
Required ratio = 198 : 324
= 11 : 18
5. What is the total number of students in the Institute ?
Solution :
Total number of students in the Institute
= 990 + 810 = 1800
That's all for now friends. Hope you enjoyed reading this post. Tomorrow we shall discuss more model practice sets of DI with shortcut methods. Happy Reading :)
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