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Question

The following table shows the number of employees working in four different colleges A - D, along with number of males, females. teaching males, teaching females, non teaching males and non-teaching females among them in a given year. Some values are missing in the table (marked as '-') that you are expected to calculate if required. Based on the data in the table answer the questions that follow.

College-wise details of employees

College

    Number of

employees

Male Employees 

Female  Employees 

Teaching Males

Non-Teaching Males

Teaching  Females 

Non-Teaching

A

756

526

-

325

-

-

-

B

-

-

-

215

-

254

-

C

-

159

-

-

-

-

-

D

224

142

82

-

-

-

-

If the number of females in college C is 147 more than the number of females in College A and the sum of teaching males and teaching females in College C is 115, then the sum of non-teaching males and non-teaching females in college C is

The correct answer is

421

College Employee Data Analysis for College C

The question provides a table showing employee data for four colleges (A, B, C, D) with some missing values. We need to find the sum of non-teaching males and non-teaching females in College C, using the given additional conditions.

Here is the provided table data:

College Number of Employees Male Employees Female Employees Teaching Males Non-Teaching Males Teaching Females Non-Teaching Females
A 756 526 - 325 - - -
B - - 215 - 254 - -
C - 159 - - - - -
D 224 142 82 - - - -

Understanding the Question for College C

We are specifically interested in College C. The question gives us two pieces of information about College C:

  1. The number of females in College C is 147 more than the number of females in College A.
  2. The sum of teaching males and teaching females in College C is 115.

We need to find the sum of non-teaching males and non-teaching females in College C.

Step-by-Step Calculation for College C Data

Step 1: Find the number of females in College A.

From the table, for College A:

  • Total Employees = 756
  • Male Employees = 526

Total Employees = Male Employees + Female Employees

So, Female Employees in College A = Total Employees in A - Male Employees in A

\(\text{Female Employees in A} = 756 - 526 = 230\)

There are 230 females in College A.

Step 2: Find the number of females in College C.

According to the first condition, the number of females in College C is 147 more than the number of females in College A.

\(\text{Female Employees in C} = \text{Female Employees in A} + 147\)

\(\text{Female Employees in C} = 230 + 147 = 377\)

There are 377 females in College C.

Step 3: Find the total number of employees in College C.

From the table, for College C:

  • Male Employees = 159

We just calculated Female Employees in College C = 377.

Total Employees in College C = Male Employees in C + Female Employees in C

\(\text{Total Employees in C} = 159 + 377 = 536\)

There are 536 employees in College C.

Step 4: Find the sum of non-teaching males and non-teaching females in College C.

The total number of employees in a college is the sum of teaching staff and non-teaching staff.

Total Employees = (Teaching Males + Teaching Females) + (Non-Teaching Males + Non-Teaching Females)

We want to find (Non-Teaching Males + Non-Teaching Females) in College C.

From the second condition, we know that (Teaching Males + Teaching Females) in College C = 115.

We calculated Total Employees in College C = 536.

So, \(536 = 115 + (\text{Non-Teaching Males in C} + \text{Non-Teaching Females in C})\)

Sum of Non-Teaching staff in C = Total Employees in C - Sum of Teaching staff in C

\(\text{Non-Teaching Males in C} + \text{Non-Teaching Females in C} = 536 - 115\)

\(\text{Non-Teaching Males in C} + \text{Non-Teaching Females in C} = 421\)

Result

The sum of non-teaching males and non-teaching females in College C is 421.

Revision Table: College C Calculations

Item Calculation/Given Value
Females in College A 756 (Total A) - 526 (Males A) 230
Females in College C Females in A + 147 230 + 147 = 377
Males in College C From table 159
Total Employees in College C Males C + Females C 159 + 377 = 536
Teaching Males + Teaching Females in C Given 115
Non-Teaching Males + Non-Teaching Females in C Total C - (Teaching Males + Teaching Females) in C 536 - 115 = 421

Additional Information: Data Interpretation Basics

Data interpretation questions often require calculating missing values based on the relationships between different data points presented in tables or charts. Key relationships in employee data typically include:

  • Total Employees = Males + Females
  • Males = Teaching Males + Non-Teaching Males
  • Females = Teaching Females + Non-Teaching Females
  • Total Employees = Teaching Staff + Non-Teaching Staff
  • Teaching Staff = Teaching Males + Teaching Females
  • Non-Teaching Staff = Non-Teaching Males + Non-Teaching Females

By using these relationships and any additional information provided in the question, you can deduce the missing values and answer the specific query.

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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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