Data Interpretation Questions for Competitive Exams

Data Interpretation: Data Interpretation Questions are usually asked in  all competitive exams like SSC, SBI, IBPS, RBI, LIC, RRB, AAI, DRDO, ISRO, NTR, FSSAI, CWC, LIC, SSC CGL, Railways and other state government exams. 
Data Interpretation questions require clear observation of charts like pie chart, bar chart, radar chart, line chart, table chart. On this page, we are providing all varieties of Data Interpretation Questions along with previous year Data Interpretation Questions.
Data Interpretation Questions are usually based on basic knowledge of arithmetic & fast calculation which includes good command on multiplication, division, addition, subtraction along with Vedic Math. 
Data Interpretation Questions is a very important section of Quantitative Aptitude. Most of the questions come from Data Interpretation in Quantitative Aptitude section.

Set-61
Study the following information and answer the questions that follow:
The following table gives the data regarding the number of students studying in various streams in various universities(X,Y& Z) in the year 2017.

Note: Total students=Male students+ Female students
1. Total number of students studying in Psychology in X and Y is what percent less than that of those studying in Chemistry in the same university?

Ans:5
Total number of students studying in Psychology in X and Y=2200+2600=4800
Total number of students studying in Chemistry in X and Y=2800+2400=5200
Required percentage= [(5200-4800)/5200]*100
=100/13
= 7 9/13%

 

2. The number of female students studying in stream Chemistry in Z is what percent of the number of female students in Psychology in X?

Ans:4
Number of female students studying in Chemistry in Z= 2200-1900=300
Number of female students in Psychology in X=2200-1500=700
Required percentage= (300/700)*100=300/7=42 6/7%

 

3. What is the ratio of the total number of males studying in stream physics and chemistry in Y University to the total number of males studying in the same stream in Z?

Ans:2
Total number of males studying in physics and chemistry in Y University=2200+1800=4000
Total number of males studying in physics and chemistry in Z University=2500+1900=4400
Required ratio=4000:4400=10:11

 

4. Total number of females studying in stream English in all the university together in 2018 was 2190 more than that in the year 2017. In 2018, what was the total number of students (male + female) studying in English in all universities together, if the total number of female students in English in 2018 constituted 4/7 of the total number of students (male + female) studying in English in all universities together?

Ans:5
In 2017,
Number of female students studying in English in X university=1600-1250=350
Number of female students studying in English in Y university=1400-1180=220
Number of female students studying in English in Z university=1500-1260=240
Total number of female students=350+220+240=810
In2018, Number of female students studying in English in all the university
=810+2190=3000
From given,
Total number of female students in English in 2018 = 4/7 of the total Number of students studying in English in all the university in 2018
4/7 of the total students in English in 2018=3000
Total students in English in 2018=3000*(7/4) =5250

 

5. What is the average number of female students studying in Physics in all the given university?

Ans:2
Number of female students studying in Physics in X university=4000-2800=1200
Number of female students studying in Physics in Y university=3800-2200=1600
Number of female students studying in Physics in Z university=3000-2500=500
Average number of female students studying in Physics in all the given university=(1200+1600+500)/3
=3300/3
=1100

 

Set-62
Read the following passage carefully and answer the given questions.
In college, students like three different computer courses C, C++ and Java. The number of students who like all the three languages is 20 which is 1/29th of the total students.  Ratio of the number of students who likes only C, C++ and Java is 4: 8: 7. Ratio of the number of students who likes C and C++, C++ and Java and C and Java is 2: 4: 3. Number of students who likes only C is equal to the number of students who likes C++ and Java which is 80.
6. Number of students who likes Only Java is what percentage of the total students in the college?

Ans:3
Total students = 20 * 29 = 580

 


Required percentage = (140/580)* 100 =24.14%

 

7. Find the ratio of the number of students who likes C to the number of students who likes C++.

Ans:2
Total students = 20 * 29 = 580

 


Required ratio = (80+40+20+60): (160+80+40+20)
= 200: 300
= 2:3

 

8. Number of students who likes only Java is what percentage more/less than the number of students who likes only C++?

Ans:4
Total students = 20 * 29 = 580

 


Required percentage = [(160-140)/160] * 100
= (20/160) * 100
= 12.5%

9. Find the difference of the number of students who likes C++ and Java to the number of students who likes C and Java

Ans:5
Total students = 20 * 29 = 580

 


Required difference = 80 – 60 = 20

 

10. Find the total number of students who likes at least two courses.

Ans:2
Total students = 20 * 29 = 580

 


Required total = (40+80+60+20)
= 200

 

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