# 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. 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%

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

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

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