Data Interpretation questions test one's ability in analysing data, inspecting the elements in data and interpreting them to extract maximum information from the given set of data or information. The data is usually given in the form of charts, tables and graphs.
Practise with our Data Interpretation questions and answers to help you know what to expect, improve your speed and confidence and be really prepared for the actual test.
The bar graph given below shows the data of the production of paper (in lakh tonnes) by three different companies X, Y and Z over the years.
Production of Paper (in lakh tonnes) by Three Companies X, Y and Z over the Years.
1996
1997
1998
1999
Correct answer is A
The percentages of production of Company Z to the production of Company Z for various years are:
For 1996 = ( 35/25 x 100 ) % = 140%
For 1997 = ( 40/35 x 100 ) % = 114.29%
For 1998 = ( 45/35 x 100 ) % = 128.57%
For 1999 = ( 35/35 x 100 ) % = 87.5%
For 2000 = ( 35/35 x 100 ) % = 70%
Clearly, this percentage is highest for 1996.
The bar graph given below shows the data of the production of paper (in lakh tonnes) by three different companies X, Y and Z over the years.
Production of Paper (in lakh tonnes) by Three Companies X, Y and Z over the Years.
The average production for five years was maximum for which company?
X
Y
Z
both X and Z
Correct answer is D
Average production (in lakh tons) in five years for the three companies are:
For Company X = [ 1/5 x (30 + 45 + 25 + 50 + 40) ] = 190/5 = 38
For Company Y = [ 1/5 x (25 + 35 + 35 + 40 + 50) ] = 185/5 = 37
For Company Z = [ 1/5 x (35 + 40 + 45 + 35 + 35) ] = 190/5 = 38
Therefore Average production of five years is maximum for both the Companies X and Z.
The bar graph given below shows the data of the production of paper (in lakh tonnes) by three different companies X, Y and Z over the years.
Production of Paper (in lakh tonnes) by Three Companies X, Y and Z over the Years.
1:1
15:17
23:25
27:29
Correct answer is C
Average production of Company X in the period 1998-2000
= [ 1/3 x (25 + 50 + 40) ] = ( 115/3 ) lakh tons
Average production of Company Y in the period 1998-2000
= [ 1/3 x (35 + 40 + 50) ] = ( 125/3 ) lakh tons
Therefore Required ratio = (115/3)/(125/3) = 115/125 = 23/25
The bar graph given below shows the data of the production of paper (in lakh tonnes) by three different companies X, Y and Z over the years.
Production of Paper (in lakh tonnes) by Three Companies X, Y and Z over the Years.
1997
1998
1999
2000
Correct answer is A
Percentage change (rise/fall) in the production of Company Y in comparison to the previous year, for different years are:
For 1997 = [ (35 - 25)/25 x 100 ] % = 40%
For 1998 = [ (35 - 35)/35 x 100 ] % = 0%
For 1999 = [ (40 - 35)/35 x 100 ] % = 14.29%
For 2000 = [ (50 - 40)/40 x 100 ] % = 25%
Hence, the maximum percentage rise/fall in the production of Company Y is for 1997.
The bar graph given below shows the foreign exchange reserves of a country (in million US $) from 1991 - 1992 to 1998 - 1999.
What was the percentage increase in the foreign exchange reserves in 1997-98 over 1993-94?
100
150
200
620
Correct answer is A
Foreign exchange reserves in 1997 - 1998 = 5040 million US $.
Foreign exchange reserves in 1993 - 1994 = 2520 million US $.
Therefore Increase = (5040 - 2520) = 2520 US $.
Therefore Percentage Increase = ( 2520/2520 x 100 ) % = 100%.