Introduction to Data Interpretation
Direction: The following bar diagram, represents the use of different modes of travel to school by students in a certain locality of the town. Study the graph and answer the questions.
 What is the ratio of the students using their means of transport as Car with those using Rickshaw?

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As per the given bar graph in question ,
Number of the students who use Car = 6 units
Number of the students who use Rickshaw = 16 units
Required ratio = Number of the students who use Car : Number of the students who use RickshawCorrect Option: D
As per the given bar graph in question ,
Number of the students who use Car = 6 units
Number of the students who use Rickshaw = 16 units
Required ratio = Number of the students who use Car : Number of the students who use Rickshaw
Required ratio = 6 : 16 = 3 : 8
 What is the percentage of students using Bus from that locality?

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On the basis of given graph in question ,
Number of students who use bus = 150∴ Required percentage = 150 × 100 660
Correct Option: C
On the basis of given graph in question ,
Number of students who use bus = 150∴ Required percentage = 150 × 100 660 Required percentage = 250 = 22 8 % 11 11
 How many students use Bicycle and Rickshaw combined?

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As per the given bar graph in question ,
Number of students who use Bicycle = 18
Number of students who use Rickshaw = 16Correct Option: B
As per the given bar graph in question ,
Number of students who use Bicycle = 18
Number of students who use Rickshaw = 16
Bicycle and Rickshaw users = (18 + 16) × 10 = 340
 How many students are coming from that locality?

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On the basis of given graph in question ,
Total number of students = (6 + 15 + 11 + 18 + 16) × 10 = 66 × 10 = 660Correct Option: D
On the basis of given graph in question ,
Total number of students = (6 + 15 + 11 + 18 + 16) × 10 = 66 × 10 = 660
Direction: Sales of books (in thousands} from six branches (B1, B2, B3, B4, B5, B6) of a publishing company are given below. Study the graph and answer the following questions.
 If all the six branches are divided into three groups such that each group has equal performance on selling books, then the minimum difference of the number of books (in thousands) sold by the two members of any group is

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As per the given bar graph in question , we have
B1 + B4 = B2 + B6 = B3 + B5 = 100000
B3 – B5 = 55 – 45 = 10 thousand
B4 – B1 = 80 – 20 = 60 thousand
B6 – B2 = 60 – 40 = 20 thousandCorrect Option: B
As per the given bar graph in question , we have
B1 + B4 = B2 + B6 = B3 + B5 = 100000
B3 – B5 = 55 – 45 = 10 thousand
B4 – B1 = 80 – 20 = 60 thousand
B6 – B2 = 60 – 40 = 20 thousand
∴ Minimum difference = 10