Introduction to Data Interpretation


Direction: The following graph represents the transport used by children. Study the graph and answer the given questions.

  1. If 10 students come by car, how many come by bus?









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    ∵ 24° ≡ 10 students

    ∴ 120° ≡
    10
    × 120°
    24

    = 50 students

    Correct Option: B

    ∵ 24° ≡ 10 students

    ∴ 120° ≡
    10
    × 120°
    24

    = 50 students


  1. What is the percentage of children using scooter?









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    Corresponding angle for children using scooter = 72°
    ∵ 360° ≡ 100%

    ∴ 72% ≡
    100
    × 72 = 20%
    360

    Correct Option: A

    Corresponding angle for children using scooter = 72°
    ∵ 360° ≡ 100%

    ∴ 72% ≡
    100
    × 72 = 20%
    360


  1. What is the measure of the angle at the centre representing people walking?









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    Corresponding angle for children who go on walking
    = 360 – 120 – 72 – 24 = 144°

    Correct Option: A

    Corresponding angle for children who go on walking
    = 360 – 120 – 72 – 24 = 144°


Direction: The following pie-chart shows the monthly expenditure of a family on food, house rent, clothing, education, fuel and miscellaneous. Study the pie-chart and answer the questions.

  1. Total percentage of expenditure on house rent, clothing and fuel is greater than the percentage of expenditure on food by









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    House rent + clothing + fuel ⇒ 20 + 12 + 15 = 47%
    Food ⇒ 30%
    Difference = 47 – 30 = 17%

    Correct Option: B

    House rent + clothing + fuel ⇒ 20 + 12 + 15 = 47%
    Food ⇒ 30%
    Difference = 47 – 30 = 17%


  1. If the percentage of expenditure on food is x% of the total percentage of expenditure on clothing, education and fuel, then x equals









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    30% = x% of (12 + 18 + 15)%

    ⇒ 30 =
    X × 45
    100

    ⇒ X =
    30 × 100
    =
    200

    453

    = 66
    2
    %
    3

    Correct Option: C

    30% = x% of (12 + 18 + 15)%

    ⇒ 30 =
    X × 45
    100

    ⇒ X =
    30 × 100
    =
    200

    453

    = 66
    2
    %
    3