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Question

The following table shows the percentage (%) distribution of total number of employees, males and graduates of a company among six different departments A-F. The total number of employees of a company is 8000 , in which the ratio of Male to Female is 3 ∶ 5 and Graduate to Post-Graduate is 3  2. Based on the data in the table, answer the question.

Department-wise Distribution of Employees, Males and Graduates.

Department 

Dirtribution (%) 

Employes 

Males 

Groduates

A

20%

25%

16%

B

12%

18%

17%

C

10%

15%

13%

D

22%

20%

10%

E

15%

10%

20%

F

21%

12%

24%

What is the number of employees working in department F who are Post-Graduate?

The correct answer is 528

Understanding the Employee Data Distribution

The question provides a table showing the percentage distribution of total employees, males, and graduates across six departments (A to F) in a company. We are also given the total number of employees and the ratios of Male to Female and Graduate to Post-Graduate employees for the entire company. Our goal is to find the number of employees in Department F who are Post-Graduate.

Let's first break down the total number of employees based on the given ratios.

Total Employee Distribution Calculations

The total number of employees in the company is $\text{8000}$.

The ratio of Male to Female employees is $\text{3 : 5}$.

  • Total parts in the Male-Female ratio = $\text{3 + 5 = 8}$
  • Total Males = $\left(\frac{3}{8}\right) \times 8000 = 3 \times 1000 = \text{3000}$
  • Total Females = $\left(\frac{5}{8}\right) \times 8000 = 5 \times 1000 = \text{5000}$

The ratio of Graduate to Post-Graduate employees is $\text{3 : 2}$.

  • Total parts in the Graduate-Post-Graduate ratio = $\text{3 + 2 = 5}$
  • Total Graduates in the company = $\left(\frac{3}{5}\right) \times 8000 = 3 \times 1600 = \text{4800}$
  • Total Post-Graduates in the company = $\left(\frac{2}{5}\right) \times 8000 = 2 \times 1600 = \text{3200}$

So, within the total 8000 employees, there are 3000 males, 5000 females, 4800 graduates, and 3200 post-graduates.

Analyzing Data for Department F

The question specifically asks about Department F. Let's extract the relevant percentages for Department F from the provided table.

Department Distribution (%) Employees Distribution (%) Males Distribution (%) Graduates
F 21% 12% 24%

Now, let's calculate the actual numbers for Department F based on these percentages and the total numbers we calculated earlier.

  • Total Employees in Department F:

    Percentage of total employees in Department F is 21%.

    Number of employees in Department F = 21% of 8000

    Number of employees in Department F = $\left(\frac{21}{100}\right) \times 8000 = 21 \times 80 = \text{1680}$

  • Total Graduates in Department F:

    Percentage of total graduates in Department F is 24%.

    Total graduates in the company is 4800.

    Number of graduates in Department F = 24% of 4800

    Number of graduates in Department F = $\left(\frac{24}{100}\right) \times 4800 = 24 \times 48$

    To calculate $24 \times 48$:

    $24 \times 48 = (20 + 4) \times 48 = 20 \times 48 + 4 \times 48$

    $20 \times 48 = 960$

    $4 \times 48 = 192$

    $960 + 192 = 1152$

    Number of graduates in Department F = $\text{1152}$

Calculating Post-Graduates in Department F

Every employee in a department is either a Graduate or a Post-Graduate (based on the given overall company distribution).

So, the total number of employees in Department F is the sum of Graduates in Department F and Post-Graduates in Department F.

Employees in Department F = Graduates in Department F + Post-Graduates in Department F

We want to find the number of Post-Graduates in Department F.

Post-Graduates in Department F = Employees in Department F - Graduates in Department F

Post-Graduates in Department F = $1680 - 1152$

Calculation:

$1680 - 1152 = 528$

Therefore, the number of employees working in Department F who are Post-Graduate is 528.

Revision Table: Key Calculations

Description Calculation Result
Total Employees Given 8000
Total Graduates (Company) (3/5) * 8000 4800
Employees in Dept F 21% of 8000 1680
Graduates in Dept F 24% of 4800 1152
Post-Graduates in Dept F 1680 - 1152 528

Additional Information: Data Interpretation Tips

When dealing with data interpretation questions involving tables and percentages, it's helpful to follow these steps:

  • Read the question carefully to understand exactly what is being asked.
  • Identify the total values and ratios provided for the whole company or dataset.
  • Calculate the actual numbers for totals based on ratios (e.g., total males, total graduates).
  • Identify the specific department or category the question is about.
  • Use the percentages from the table to calculate the numbers for that specific department/category based on the relevant total (total employees, total males, total graduates, etc.). Be careful to use the correct total base for each percentage.
  • Perform the final calculation requested in the question using the numbers you've derived.
  • Double-check your calculations, especially percentage calculations and subtractions.

In this problem, understanding that the percentage distribution of 'Males' is based on the 'Total Males' in the company, and similarly for 'Graduates' on 'Total Graduates', is crucial. The percentage distribution of 'Employees' is based on the 'Total Employees'.

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Important Questions from Tabulation

  1. 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?
  2. 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?
  3. 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?
  4. 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:

  5. The table given below shows the number of persons participating in a survey from 6 different states.

    States Persons 
    S1100
    S2200 
    S3400 
    S4500 
    S5600 
    S6800

    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?

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