Introduction to Data Interpretation

Introduction to Data Interpretation

Easy Questions
Moderate Questions
Difficult Questions

Data Interpretation

Introduction to Data Interpretation
Table chart
Line chart
Pie chart
Bar graph
Mixed Graph
Data Sufficiency

Direction: Study the following bar–diagram carefully and answer the questions.

  1. The ratio of the number of years, in which the foreign exchange reserves are above the average reserves, to those in which reserves are below the average reserves, is








  1. View Hint View Answer Discuss in Forum

    From the given bar diagram , we see
    Total foreign exchange reserves = 2640 + 3720 + 2520 + 3360 + 3120 + 4320 + 5040 + 3120
    Total number of years = 8

    Average foreign exchange reserves =
    (2640 + 3720 + 2520 + 3360 + 3120 + 4320 + 5040 + 3120)
    		million dollar
    8

    Average foreign exchange reserves = 27840 million dollar
    8

    Correct Option: C

    From the given bar diagram , we see
    Total foreign exchange reserves = 2640 + 3720 + 2520 + 3360 + 3120 + 4320 + 5040 + 3120
    Total number of years = 8

    Average foreign exchange reserves =
    (2640 + 3720 + 2520 + 3360 + 3120 + 4320 + 5040 + 3120)
    		million dollar
    8

    Average foreign exchange reserves = 27840 million dollar
    8

    Average foreign exchange reserves = 3480 million dollar
    Years that have more than average foreign exchange reserves ⇒ 2007, 2011, 2012
    Number of the foreign exchange reserves above the average = 3
    Number of the foreign exchange reserves below the average = 5
    Required ratio = 3 : 5

  1. What was the percentage increase in the foreign reserves in 2012 over 2008?








  1. View Hint View Answer Discuss in Forum

    According to given bar graph , we have
    The foreign reserves in 2012 = 5040
    The foreign reserves in 2008 = 2520
    Increase = 5040 - 2520 = 2520

    Required percentage increase =
    Increase
    		× 100
    The foreign reserves in 2008

    Correct Option: A

    According to given bar graph , we have
    The foreign reserves in 2012 = 5040
    The foreign reserves in 2008 = 2520
    Increase = 5040 - 2520 = 2520

    Required percentage increase =
    Increase
    		× 100
    The foreign reserves in 2008

    Required percentage increase =
    2520
    		 × 100 = 100%
    2520

  1. The foreign exchange reserve in 2012 was how many times that in 2009?








  1. View Hint View Answer Discuss in Forum

    On the basis of given graph in question ,
    The foreign exchange reserve in 2012 = 5040
    The foreign exchange reserve in 2009 = 3360

    Required answer =
    The foreign exchange reserve in 2012
    The foreign exchange reserve in 2009

    Correct Option: D

    On the basis of given graph in question ,
    The foreign exchange reserve in 2012 = 5040
    The foreign exchange reserve in 2009 = 3360

    Required answer =
    The foreign exchange reserve in 2012
    The foreign exchange reserve in 2009

    Required answer =
    5040
    		= 1.5
    3360

Direction: The bar graph given below shows the per acre yield (in kg) of different countries. Study the graph carefully and answer the questions.

  1. Writing the yields of all countries in ascending order, the difference between the sum of yields of first three countries to that of last three countries is








  1. View Hint View Answer Discuss in Forum

    From the given bar diagram , we see
    Ascending order of yield per acre : 80 < 120 < 120 < 132 < 160 < 200
    Sum of yields of first three countries = 132 + 160 + 200 = 492
    Sum of yields of last three countries = 80 + 120 + 120 = 320
    Required difference = Sum of yields of first three countries - Sum of yields of last three countries

    Correct Option: C

    From the given bar diagram , we see
    Ascending order of yield per acre : 80 < 120 < 120 < 132 < 160 < 200
    Sum of yields of first three countries = 132 + 160 + 200 = 492
    Sum of yields of last three countries = 80 + 120 + 120 = 320
    Required difference = Sum of yields of first three countries - Sum of yields of last three countries
    ∴ Required difference = (492 – 320) kg. = 172 kg.

  1. Sri Lanka’s yield (approximately) is what percent of total yield of all the countries?








  1. View Hint View Answer Discuss in Forum

    On the basis of given graph in question ,
    Total yield of all the countries = 80 + 120 + 132 + 120 + 160 + 200 = 812
    The per acre yield of Sri Lanka = 132

    Required percent =
    The per acre yield of Sri Lanka
    		 × 100
    Total yield of all the countries

    Correct Option: B

    On the basis of given graph in question ,
    Total yield of all the countries = 80 + 120 + 132 + 120 + 160 + 200 = 812
    The per acre yield of Sri Lanka = 132

    Required percent =
    The per acre yield of Sri Lanka
    		 × 100
    Total yield of all the countries

    Required percent =
    132
    		× 100 ≈ 16.2
    812