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Data Interpretation Practice Questions: Level 01

Solve the basic DI questions set. Also, the answer key and explanations are given for the same.
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DIRECTIONS for questions 1 to 3: The following table gives the data about big 12 software exporters in India from 1997-98 to 1999-2000 (Revenue in Rs. crore).
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    1997 – 98 1998 – 99 1999 – 2000
1. Tata Consultancy Services 955.27 1518.50 1820.35
2. Wipro 388.94 632.50 1037.30
3. HCL Technologies 446.53 862.14 908.00
4. Infosys 250.93 500.25 869.70
5. Satyam 178.11 376.62 662.93
6. NIIT 258.38 394.96 551.79
7. Silverline Technologies 45.32 103.95 434.83
8. Cognizant 113.16 290.03 414.26
9. Pentamedia - 389.02 -
10. Pentasoft - - 353.01
11. Patni Computers 137.58 219.90 295.51
12. IBM Global 115.32 227.63 271.14
  1. What is the lowest rate of growth of 1998-99 to 1999-2000 for any of the companies given in the chart?
    A. 0%
    B. 12.7%
    C. 19.1%
    D. 10.1%
    E. 5.3%

    Answer Key: E
    Explanation: Lowest growth has been for HCL: from 862 to 908, about 5%. Hence option E
  2. Which of the following statement is true about the share of exports of Tata Consultancy Services in the total exports of the 12 companies?
    A. It has almost doubled in 1999 – 00 over 1997 – 98.
    B. It has been steadily increasing
    C. It is more or less constant.
    D. It has dropped by about 10 %.
    E. None of these.
    Answer Key: D
    Explanation: Share in 1997-98: 33%.
    In 1999-2000, the share is 1820/7618 = 23%, so it has dropped by almost 10%.
  3. If total software exports in 2000 – 2001 were expected to be Rs 10,000 crore and the growth of Infosys is the same as it was in 1999 – 2000, what would have been Infosys’ share of exports of these 12 companies in 2000 – 2001?
    A. 15%
    B. 19%
    C. 21%
    D. 23%
    E. None of these
    Answer Key: A
    Explanation: Growth of Infosys has been almost 74%.
    Increase 869 by 74 % and we get about 1,500 which is 15% of 10,000.
DIRECTIONSfor questions 4 & 5: Study the following graph and answer the questions that follow.
  1. In which year was the value per tin the minimum?
    A. 1987
    B. 1984
    C. 1985
    D. 1986
    E. 1983
    Answer Key: E
    Explanation: In 1983, value per tin is 150/100, which is the lowest for all the years. Hence 5.
  2. If in 1986 tins were exported at the same rate per tin as in 1985, then what would be the value of exports in 1986? (Crores of Rupees)
    A. 400
    B. 420
    C. 375
    D. 330
    E. 352
    Answer Key: E
    Explanation: Value in 1985: 330/150 = 2.2.
    Value in 1986: 160 x 2.2 = 352.
    Hence option E
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DIRECTIONS for questions 6 to 10: The percentage distribution of households by household size and the average sizes of household in.
  • All India Rural and Urban areas.
  • Urban areas classified as per population size are presented below.
All India Distribution of People Average Size of Household
Rural - 5.08
Urban - 4.60
Distribution of Urban Below 15, 000 4.75
15, 000 - 50, 000 4.50
50001 – Above 4.70
  1. In rural areas, which one of the following sizes of the households is the highest in number?
    A. 15
    B. 2
    C. 3
    D. 4
    E. Can't be determined
    Answer Key: D
    Explanation: From the graph, we see that the line for rural peaks at about 4-5.
    Hence the best answer is (4).
  2. In urban areas, among the households of different sizes, what is the percentage of households of size 5 or less?
    A. 13
    B. 72
    C. 36
    D. 87
    E. Can't be determined
    Answer Key: B
    Explanation: Total up the number of households ≤ 5 are 17 + 14 + 12 + 15 + 14 = 72.
  3. In rural areas, per 100 households, there were 31 households of size:
    A. 3 or above
    B. 3, 4 and 5
    C. 3 or less
    D. 4 or less
    E. 5 or more
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    Answer Key: C
    Explanation: Total up the values for rural area for the size 3 or less to get the answer.
  4. As the urban population of towns increase, the average household size
    A. Increases
    B. Decreases
    C. remains constant
    D. Fluctuating
    E. Decreases with the exception of category 50,000 and above
    Answer Key: D
    Explanation: As population size increases, we see that household size is 4.75, 4.50, 4.70.
    Hence the values are fluctuating.
  5. Which one of the following statements is true?
    A.On the average there are more persons per family in urban areas than in rural areas.
    B.In rural areas, 35 per cent of the households are of the size 7 and above.
    C.In urban areas, the average size of the household is the least for towns.
    D.In urban areas, there are 460 persons on an average per 100 households.
    E.None of these
    Answer Key: B
    Explanation: Only statement (b) can be inferred from the given graphs.
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