The following table embodies the details about the enrollment of students in five different streams namely IT, Management, Commerce, Science and Arts in a college during the session 2019-20. A total number of 3500 students including 1500 girls have been enrolled in the college. Based on the data in the table, answer the question: Stream-wise enrollment of students Stream Percentage (%) of students enrolled (out of 3500) Percentage (%) of Girls enrolled (out of 1500) IT 20% 18% Management 16% 12% Commerce 12% 21% Science 22% 11% Arts 30% 38%
What is the total number of girls enrolled in Science and Commerce streams together?
480
Understanding Student Enrollment Data
This question asks us to find the total number of girls enrolled in the Science and Commerce streams combined, based on the provided table which details the stream-wise enrollment percentages for both total students and girls specifically.
We are given the following key pieces of information:
- Total number of students enrolled: 3500
- Total number of girls enrolled: 1500
The table provides the percentage distribution of these totals across different streams. To find the number of girls in a specific stream, we need to use the percentage of girls enrolled in that stream (out of the total 1500 girls) and apply it to the total number of girls.
| Stream | Percentage (%) of students enrolled (out of 3500) | Percentage (%) of Girls enrolled (out of 1500) |
|---|---|---|
| IT | 20% | 18% |
| Management | 16% | 12% |
| Commerce | 12% | 21% |
| Science | 22% | 11% |
| Arts | 30% | 38% |
Calculating Girls in Commerce Stream
First, let's calculate the number of girls enrolled in the Commerce stream.
From the table, the percentage of girls enrolled in Commerce is 21% (out of the total 1500 girls).
Number of girls in Commerce = 21% of Total Girls
Using the given total number of girls (1500):
Number of girls in Commerce = $\frac{21}{100} \times 1500$
Number of girls in Commerce = $21 \times \frac{1500}{100}$
Number of girls in Commerce = $21 \times 15$
Number of girls in Commerce = 315
So, there are 315 girls enrolled in the Commerce stream.
Calculating Girls in Science Stream
Next, let's calculate the number of girls enrolled in the Science stream.
From the table, the percentage of girls enrolled in Science is 11% (out of the total 1500 girls).
Number of girls in Science = 11% of Total Girls
Using the given total number of girls (1500):
Number of girls in Science = $\frac{11}{100} \times 1500$
Number of girls in Science = $11 \times \frac{1500}{100}$
Number of girls in Science = $11 \times 15$
Number of girls in Science = 165
So, there are 165 girls enrolled in the Science stream.
Total Girls in Science and Commerce
Finally, we need to find the total number of girls enrolled in Science and Commerce streams together. This is the sum of the girls in Commerce and the girls in Science.
Total girls in Science and Commerce = Number of girls in Commerce + Number of girls in Science
Total girls in Science and Commerce = $315 + 165$
Total girls in Science and Commerce = 480
Therefore, the total number of girls enrolled in Science and Commerce streams together is 480.
Revision Table: Key Calculations
| Stream | Percentage of Girls | Total Girls | Calculated Number of Girls |
|---|---|---|---|
| Commerce | 21% | 1500 | $\frac{21}{100} \times 1500 = 315$ |
| Science | 11% | 1500 | $\frac{11}{100} \times 1500 = 165$ |
| Total (Science + Commerce) | - | - | $315 + 165 = 480$ |
Additional Information: Data Interpretation Basics
Data interpretation questions often require careful reading of tables or charts and performing calculations based on percentages, ratios, or absolute numbers.
- Percentage Calculations: A percentage represents a part out of a hundred. To find 'X% of Y', you calculate $(\frac{X}{100}) \times Y$. In this problem, we calculated the number of girls in each stream by finding the specified percentage of the total number of girls.
- Reading Tables: Pay close attention to the headings and labels in the table. Understand what base the percentages are calculated from (e.g., percentage of total students vs. percentage of total girls).
- Combining Data: Sometimes, you need to combine data from different rows or columns to answer the question, as we did here by adding the number of girls from two different streams.
Important Questions from Tabulation
The table shows District-wise data of a number of primary school teachers posted in schools of a city.
Study the table and answer the question:
District
Male teachers
Female teachers
East
1650
2375
North
1075
2651
West
1280
1520
South
1170
1085
Central
690
859
What is the difference between the total number of male teachers in the districts East, North, West taken together and the total number of female teachers in the districts East and South?Table shows income (in Rs. ) received by 4 employees of a company during the month of December 2020 and all their income sources.
Source
Amit
Suresh
Nitin
Varun
Salary
35000
38500
29000
42000
Arrears
6000
6300
5000
7500
Bonus
1000
1100
1000
1240
Overtime
1800
1950
1400
1500
What is the ratio of salary of Varun to his income other than salary?Study the table and answer the question:
Income (Rs.)
No. of persons
Less than 200
12
Less than 250
26
Less than 300
34
Less than 350
40
Less than 400
50
What is the percentage of persons earning Rs. 250 or more?The following table shows the annual profit of a company (in Rs. lakh).
2014-2015
2015-2016
2016-0217
2017-2018
2018-2019
625
690
725
775
815
The period which has the maximum percentage increase in profit over the previous year is:
The table given below shows the number of persons participating in a survey from 6 different states.
States Persons S1 100 S2 200 S3 400 S4 500 S5 600 S6 800 What is the ratio of number of person participating in a survey from state S3 to the number of person participating in a survey from state S4?
