Bar Diagrams: Exercise-3


Overview:


Questions and Answers Type:MCQ (Multiple Choice Questions).
Main Topic:Data Interpretation.
Data Interpretation Sub-topic:Bar Graph Questions and Answers.
Number of Questions:5 Questions with Solutions.

Directions: In the following bar diagram, the number of Refrigerators and Televisions (in millions) sold by six different companies in a certain year has been given, study the bar diagram carefully and answer the questions given below it.


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  1. What is the average number of Refrigerators sold by all companies taken together in a year?

    1. 10.25 million
    2. 12.83 million
    3. 16.62 million
    4. 17.12 million


Answer: (b) 12.83 million

Solution: Total number of Refrigerators sold by all companies together, $$ = 6 + 10 + 15 + 20 + 16 + 10 $$ $$ = 77 $$ Now the average, $$ = \frac{77}{6} = 12.83 \ million $$

  1. By what percent the number of Refrigerators sold by company E is more than that of company B?

    1. 40%
    2. 50%
    3. 60%
    4. 70%


Answer: (c) 60%

Solution: Required percentage, $$ = \frac{16 - 10}{10} \times 100 $$ $$ = 60 \ \% $$

  1. What is the average of the number of Televisions sold by B, C and D together?

    1. 11.66 million
    2. 13.58 million
    3. 15.22 million
    4. 19.32 million


Answer: (a) 11.66 million

Solution: Average number of Televisions sold by companies B, C and D together, $$ = \frac{5 + 12 + 18}{3} $$ $$ = 11.66 \ million $$

  1. What is the respective ratio between the number of Refrigerators sold by company B and that of Televisions sold by company C?

    1. 2:3
    2. 3:5
    3. 5:6
    4. 6:7


Answer: (c) 5:6

Solution: Required Ratio, $$ = 10 : 12 $$ $$ = 5 : 6 $$

  1. What is the respective ratio of the number of Televisions sold by company C and D?

    1. 2:3
    2. 3:4
    3. 4:5
    4. 5:6


Answer: (a) 2:3

Solution: Required Ratio, $$ = 12 : 18 $$ $$ = 2 : 3 $$