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-31
Study the following table carefully and answer the given questions:
Number of solar panel manufactured by the five different companies in the given years (in thousand) and % of defective pieces
T – Total no. of solar panel manufactured
d – % of defective pieces

1. What is the difference between the numbers of non defective solar panel manufactured by companies A&B together and companies D&E together in the year 2010?

Ans:1
Company A = (14000*99.1)/100 => 13874
Company B = (18000*98.8)/100 => 17784
Company D = (12000*99.4)/100 => 11928
Company E = (16000*99.2)/100 => 15872
Difference = (13874+17784) – (11928+15872)
= 3858

 

2. How many non defective solar panels approximately were manufactured by company B taking all the years together?

Ans:2
2010 = (18000*98.8)/100 => 17784 2013 = (26000*98.8)/100 => 25688
2011 = (22000*98.9)/100=> 21758 2014 = (22000*99.3)/100 => 21846
2012 = (20000*98.7)/100 => 19740 2015 = (26000*98.7)/100 => 25662
Ans = 17784+21758+19740+25688+21846+25662 => 132478

 

3. How many defective solar panels were manufactured by company C in all the given years? (In thousand)

Ans:1
2010 = (17*1.0)/100 =>0.17 2013 = (20*0.6)/100 => 0.12
2011 = (21*1.3)/100=> 0.273 2014 = (24*1.1)/100 => 0.264
2012 = (25*1.2)/100 =>0.3 2015 = (28*1.6)/100 => 0.448
= 0.17+0.273+0.3+0.12+0.264+0.448 => 1.575 thousand

 

4. How many Average number of solar panels (in thousands) were manufactured by company D in the given years?

Ans:3
1/6 (12+17+18+27+28+29)
= 21.83 thousands => 22 thousands

 

5. The respective ratio between the total numbers of solar panels manufactured by companies D to E in all the given years?

Ans:2
Company D => (12+17+18+27+28+29) = 131
Company E => (16+14+24+23+25+23) = 125
131:125

 

Set-32
 Study The Following Graph Carefully And Answer The Questions Given Below


6. For company A, What is the percent decrease in Production from 2004 to 2005?

Ans:2
2004 => 4 =100%
2005 => 3 =? %
Percentage = (1/4)*100 = 25%

 

7. In 2011, the production of company B is approximately what % of that in 2010?

Ans:1
2011 company B’s production = 11
2010 company B’s production = 7
Percentage = (11/7)*100 = 157.14

 

8. In 2011, the production of company B is approximately what % of that in 2010?

Ans:1
2005 = ((4-3)/4)*100 = 25% decrease
2006 = ((8-3)/8)*100 = 62.5% increase
2007 = ((8-8)/8)*100 = 0
2008 = ((8-8)/8)*100 = 0
2009 = ((8-7)/8)*100 = 12.5% decrease
2010 = ((8-7)/7)*100 = 14.28% increase
2011 = ((12-8)/8)*100= 50% increase
Ans = 2006

 

9. For company A in Which year is the percentage increase/decrease in the production from the previous year the highest?

Ans:1
Company A ( in lakh ) –> ( 4+3+8+8+8+7+8+12) = 5800000
Company B ( in lakh ) –> ( 1+1+1+2+3+5+7+11) = 3100000
Difference = (5800000 – 3100000) = 2700000

 

10. What is the difference in the total production of the two companies for the given years?

Ans:2
Company B –>( 1+1+1+2+3+5+7+11) = 31
Average -> 31/8 = 3.87

 

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