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Question

The following table shows the percentage (%) break-up of the employees working in six different universities A, B, C, D, E and F. The total number of employees in these six Universities is also given in the table. Based on the data in the table, answer the questions:

University- Wise Distribution of Employees.

UniversityTotal Number of EmployeesPercentage
MalesFemalesTransgenders
(A)240050%37.5%12.5%
(B)437540%36%24%
(C)262524%56%20%
(D)600035%25%40%
(E)425038%30%32%
(F)136045%40%15%

The ratio of the number of males working in university D to the number of females working in university C is

The correct answer is

10 : 7

This problem requires us to analyze the provided table which shows the distribution of employees across six different universities, including the total number of employees and the percentage breakdown by gender (Males, Females, Transgenders) for each university. We need to find the ratio of the number of males working in University D to the number of females working in University C.

University Total Number of Employees Percentage
Males
Percentage
Females
Percentage
Transgenders
A 2400 50% 37.5% 12.5%
B 4375 40% 36% 24%
C 2625 24% 56% 20%
D 6000 35% 25% 40%
E 4250 38% 30% 32%
F 1360 45% 40% 15%

Calculating the Number of Males in University D

From the table, we see the total number of employees in University D is 6000, and the percentage of males is 35%. To find the actual number of males, we calculate 35% of 6000.

Number of Males in University D $= 35\% \text{ of } 6000$

Using mathematical notation:

\( \text{Number of Males in D} = \frac{35}{100} \times 6000 \)

\( \text{Number of Males in D} = 35 \times 60 \)

\( \text{Number of Males in D} = 2100 \)

So, there are 2100 male employees in University D.

Calculating the Number of Females in University C

From the table, we see the total number of employees in University C is 2625, and the percentage of females is 56%. To find the actual number of females, we calculate 56% of 2625.

Number of Females in University C $= 56\% \text{ of } 2625$

Using mathematical notation:

\( \text{Number of Females in C} = \frac{56}{100} \times 2625 \)

We can simplify the fraction $\frac{56}{100}$ by dividing the numerator and denominator by 4:

\( \frac{56}{100} = \frac{56 \div 4}{100 \div 4} = \frac{14}{25} \)

Now, the calculation becomes:

\( \text{Number of Females in C} = \frac{14}{25} \times 2625 \)

We can divide 2625 by 25:

\( 2625 \div 25 = 105 \)

So, the calculation is:

\( \text{Number of Females in C} = 14 \times 105 \)

\( \text{Number of Females in C} = 1470 \)

So, there are 1470 female employees in University C.

Determining the Ratio

We need to find the ratio of the number of males working in University D to the number of females working in University C. This is the ratio of 2100 to 1470.

Ratio = Number of Males in D : Number of Females in C

Ratio = \( 2100 : 1470 \)

To simplify the ratio, we can divide both numbers by their greatest common divisor. We can start by dividing by common factors.

  • Divide both numbers by 10: \( 210 : 147 \)
  • Now, let's find a common factor for 210 and 147. Both are divisible by 7 (since \( 210 = 7 \times 30 \) and \( 147 = 7 \times 21 \)): \( 30 : 21 \)
  • Now, both 30 and 21 are divisible by 3: \( 10 : 7 \)

The simplified ratio is \( 10:7 \).

Revision Table: Key Calculations

Entity Calculation Result
Males in University D \( 35\% \text{ of } 6000 = \frac{35}{100} \times 6000 \) 2100
Females in University C \( 56\% \text{ of } 2625 = \frac{56}{100} \times 2625 \) 1470
Ratio (Males in D : Females in C) \( 2100 : 1470 \) (Simplified) \( 10 : 7 \)

Additional Information: Understanding Ratios and Percentages

This problem involves understanding how to calculate percentages of a given total and how to express two quantities as a ratio. A percentage is a fraction of 100, so X% of a number N is calculated as \(\frac{X}{100} \times N\). A ratio compares two quantities. A ratio A:B means that for every A units of the first quantity, there are B units of the second quantity. Ratios are typically expressed in their simplest form by dividing both parts of the ratio by their greatest common divisor.

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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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