All Exams Test series for 1 year @ ₹349 only
Question

Based on the data in the table, answer the questions that follow

The following table presents the percentage (%) distribution of candidates who were enrolled for Ph.D. entrance exam and the candidates who passed the exam from seven different Institutes A - G. Total number of candidates enrolled were 17100 and candidates who passed the exam were 11400.

Institute-wise Percentage (%) Distribution of Candidates

Candidates →

Institute ↓

Enrolled (%)

(out of 17100)

Passed (%)

(out of 11400)

A

16%

12%

B

22%

18%

C

15%

17%

D

10%

13%

E

17%

16%

F

8%

9%

G

12%

15%

What percentage of candidates passed the exam from Institute F, out of the total number of candidates enrolled in F?

The correct answer is

75%

The question asks for the percentage of candidates who passed the Ph.D. entrance exam from Institute F, calculated with respect to the total number of candidates who were enrolled in Institute F.

We are given the following information:

  • Total number of candidates enrolled for the exam across all institutes: 17100
  • Total number of candidates who passed the exam across all institutes: 11400
  • A table showing the percentage distribution of enrolled and passed candidates for each institute (A-G).

Let's look at the data for Institute F from the table.

Candidates →
Institute ↓
Enrolled (%)
(out of 17100)
Passed (%)
(out of 11400)
A 16% 12%
B 22% 18%
C 15% 17%
D 10% 13%
E 17% 16%
F 8% 9%
G 12% 15%

From the table, for Institute F:

  • Percentage of enrolled candidates in F = 8% of the total enrolled (17100)
  • Percentage of passed candidates in F = 9% of the total passed (11400)

First, we need to calculate the actual number of candidates enrolled in Institute F:

Number of candidates enrolled in F = 8% of 17100

Number of candidates enrolled in F = $\frac{8}{100} \times 17100 = 8 \times 171 = 1368$

Next, we need to calculate the actual number of candidates who passed the exam from Institute F:

Number of candidates passed in F = 9% of 11400

Number of candidates passed in F = $\frac{9}{100} \times 11400 = 9 \times 114 = 1026$

The question asks for the percentage of candidates who passed from Institute F out of the total number of candidates enrolled in F. This means we need to calculate the pass percentage specifically for Institute F based on its own enrolled candidates.

Percentage of candidates passed in F out of total enrolled in F = $\left( \frac{\text{Number of candidates passed in F}}{\text{Number of candidates enrolled in F}} \right) \times 100\%$

Percentage = $\left( \frac{1026}{1368} \right) \times 100\%$

Now, let's simplify the fraction $\frac{1026}{1368}$. Both numbers are divisible by 2:

$\frac{1026 \div 2}{1368 \div 2} = \frac{513}{684}$

Both 513 and 684 are divisible by 9 (sum of digits 5+1+3=9, 6+8+4=18):

$\frac{513 \div 9}{684 \div 9} = \frac{57}{76}$

Both 57 and 76 are divisible by 19 (since $57 = 3 \times 19$ and $76 = 4 \times 19$):

$\frac{57 \div 19}{76 \div 19} = \frac{3}{4}$

So, the fraction is $\frac{3}{4}$. Now, calculate the percentage:

Percentage = $\frac{3}{4} \times 100\% = 0.75 \times 100\% = 75\%$

Therefore, 75% of the candidates enrolled in Institute F passed the exam.

Revision Table: Ph.D. Entrance Exam Data Analysis

Understanding the different percentages is key in data interpretation questions like this. Here's a quick summary of the calculations for Institute F:

  • Total Enrolled: 17100
  • Total Passed: 11400
  • Enrolled in F: 8% of 17100 = 1368
  • Passed in F: 9% of 11400 = 1026
  • Pass Percentage for F (out of Enrolled in F): (1026 / 1368) * 100% = 75%

Additional Information: Data Interpretation Concepts

Data interpretation questions often involve calculating different types of percentages or averages based on provided tables or charts. It's important to carefully read what the percentage is relative to (e.g., percentage of passed out of total enrolled, percentage passed out of enrolled in a specific institute, percentage distribution out of total passed). In this case, the key was to calculate the pass rate *within* Institute F.

  • Percentage Distribution: Shows how a total quantity is divided among different categories, expressed as percentages of the total.
  • Calculating Actual Values: When given a total and a percentage distribution, you can find the actual value for a category by multiplying the total by the percentage (as a decimal).
  • Calculating Relative Percentage: Sometimes you need to find the percentage of one value relative to another specific value (not necessarily the overall total), as demonstrated in this problem. The formula is $\left( \frac{\text{Part}}{\text{Whole}} \right) \times 100\%$.

Practice with different types of data representation (tables, bar graphs, pie charts) and percentage calculations will help you solve such problems efficiently.

Was this answer helpful?

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?

Need Expert Advice?

Start Your Preparation with Prepp Mobile App

Download the app from Google Play & App Store
Download the app from Google Play & App Store
Prepp Mobile App