# Line Graph: Exercise-5

#### Overview:

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

Directions: Study the following graph carefully and answer the questions given below it.

Number of trees planted by the three different countries over the years.

1. In which year was the total number of trees planted by all the countries together highest?

1. 2014
2. 2015
3. 2016
4. 2017

Solution: Number of trees planted by all the countries together over the years.

In 2013, $$= 20 + 30 + 40$$ $$= 90 \ Millions$$ In 2014, $$= 30 + 20 + 40$$ $$= 90 \ Millions$$ In 2015, $$= 20 + 40 + 50$$ $$= 110 \ Millions$$ In 2016, $$= 20 + 40 + 30$$ $$= 90 \ Millions$$ In 2017, $$= 40 + 50 + 30$$ $$= 120 \ Millions$$ Hence, in the year 2017, the total number of trees planted by all the countries together was highest.

1. What was the difference between the trees planted by the country B in the year 2016 and the number of trees planted by the country C in the year 2017?

1. 10 Millions
2. 20 Millions
3. 30 Millions
4. 40 Millions

Solution: Required difference, $$= 40 - 30$$ $$= 10 \ Millions$$

1. What was the average number of trees planted in the year 2015 by all the countries together?

1. 36.67 Millions
2. 32.25 Millions
3. 30.15 Millions
4. 28.63 Millions

Solution: Average number of trees planted by all the countries together in the year 2015, $$= \frac{20 + 40 + 50}{3}$$ $$= 36.67 \ Millions$$

1. Total number of trees planted by the countries B and C together in the year 2013 was approximately what percent of the total number of trees planted by the countries B and C together in the year 2015

1. 67.67%
2. 77.78%
3. 86.56%
4. 62.32%

Solution: Required percentage, $$= \frac{(30 + 40)}{(40 + 50)} \times 100$$ $$= 77.78 \ \%$$

1. What was the respective ratio between the number of trees planted by the country A in the year 2016, the number of trees planted by the country B in the year 2015, and the number of trees planted by the country C in the year 2017?

1. 4:3:2
2. 3:2:4
3. 2:4:3
4. 3:4:2

Solution: Required ratio, $$= 20 : 40 : 30$$ $$= 2 : 4 : 3$$