Exercise :: Line Charts  Line Chart 1
Study the following line graph and answer the questions.
Exports from Three Companies Over the Years (in Rs. crore)
1.  For which of the following pairs of years the total exports from the three Companies together are equal? 

Answer: Option D Explanation: Total exports of the three Companies X, Y and Z together, during various years are: In 1993 = Rs. (30 + 80 + 60) crores = Rs. 170 crores. In 1994 = Rs. (60 + 40 + 90) crores = Rs. 190 crores. In 1995 = Rs. (40 + 60 + 120) crores = Rs. 220 crores. In 1996 = Rs. (70 + 60 + 90) crores = Rs. 220 crores. In 1997 = Rs. (100 + 80 + 60) crores = Rs. 240 crores. In 1998 = Rs. (50 + 100 + 80) crores = Rs. 230 crores. In 1999 = Rs. (120 + 140 + 100) crores = Rs. 360 crores. Clearly, the total exports of the three Companies X, Y and Z together are same during the years 1995 and 1996. 
2.  Average annual exports during the given period for Company Y is approximately what percent of the average annual exports for Company Z? 

Answer: Option D Explanation: Analysis of the graph: From the graph it is clear that
Average annual exports (in Rs. crore) of Company Y during the given period
Average annual exports (in Rs. crore) of Company Z during the given period

3.  In which year was the difference between the exports from Companies X and Y the minimum? 

Answer: Option C Explanation: The difference between the exports from the Companies X and Y during the various years are: In 1993 = Rs. (80  30) crores = Rs. 50 crores. In 1994 = Rs. (60  40) crores = Rs. 20 crores. In 1995 = Rs. (60  40) crores = Rs. 20 crores. In 1996 = Rs. (70  60) crores = Rs. 10 crores. In 1997 = Rs. (100  80) crores = Rs. 20 crores. In 1998 = Rs. (100  50) crores = Rs. 50 crores. In 1999 = Rs. (140  120) crores = Rs. 20 crores. Clearly, the difference is minimum in the year 1996. 
4.  What was the difference between the average exports of the three Companies in 1993 and the average exports in 1998? 

Answer: Option C Explanation: Average exports of the three Companies X, Y and Z in 1993
Average exports of the three Companies X, Y and Z in 1998

5.  In how many of the given years, were the exports from Company Z more than the average annual exports over the given years? 

Answer: Option C Explanation: Average annual exports of Company Z during the given period
= Rs. 85.71 crores. From the analysis of graph the exports of Company Z are more than the average annual exports of Company Z (i.e., Rs. 85.71 crores) during the years 1994, 1995, 1996 and 1999, i.e., during 4 of the given years. 