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Bar Graph 8 - Questions and Answers

 

Practice these Bar Graph 8 under Bar Graph walk-in interview Questions/ examination questions with best tricks and short cuts with solution. Student (candidate) who want to crack the walk in interview, competitive exams and want to find short cuts and tricks to solve questions on Bar Graph 8 for following purpose.


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Here is list of Questions and Answers covering all key area of  Bar Graph 8 topic of Bar Graph:

 

Directions to Solve

A soft-drink company prepares drinks of three different flavours - X, Y and Z. The production of the three flavours over a period of six years has been expressed in the bar graph provided below. Study the graph and answer the questions based on it.

1. What was the approximate decline in the production of flavour Z in 2000 as compared to the production in 1998?

Answer: Option C

Explanation:
Percentage decline in the production of flavour Z in 2000 as compared to the production in 1998 = [(60 - 40)/60 * 100]% = (20/60 * 100)% = 33.33% = 33%

2. The total production of flavour Z in 1997 and 1998 is what percentage of the total production of flavour X in 1995 and 1996?

Answer: Option E

Explanation:
Required percentage = [(60 + 60)/(50 + 40) * 100]% = (120/90 * 100)% = 133.33%

3. What is the difference between the average production of flavour X in 1995, 1996 and 1997 and the average production of flavour Y in 1998, 1999 and 2000?

Answer: Option E

Explanation:
Average production of flavour X in 1995, 1996 and 1997 = [1/3 * (50 + 40 + 55)] = 145/3 lakh bottles. Average production of flavour Y in 1998, 1999 and 2000 = [1/3 * (55 + 50 + 55)] = 160/3 lakh bottles. Difference = (160/3 - 145/3) = 15/3 = 5 lakh bottles. = 5,00,000 bottles.

4. For which of the following years the percentage of rise / fall in production from the previous year is the maximum for the flavour Y?

Answer: Option B

Explanation:
In 1996 =[(60 - 55)/55 * 100]% = 9.09% inc. In 1997 =[(60 - 50)/60 * 100]% = 16.67% dec. In 1998 =[(55 - 50)/50 * 100]% = 10% inc. In 1999 =[(55 - 55)/55 * 100]% = 9.09% dec. In 2000 =[(55 - 50)/50 * 100]% = 10% inc. Maximum change is decrease of 16.67% during 1997.

5. For which flavour was the average annual production maximum in the given period?

Answer: Option B

Explanation:
For flavour X = [1/6 * (50 + 40 + 55 + 45 + 60 + 50)] = 50 lakh bottles For flavour Y = [1/6 * (55 + 60 + 50 + 55 + 50 + 55)] = 54.17 lakh bottles For flavour Z = [1/6 * (45 + 50 + 60 + 60 + 45 + 40)] = 50 lakh bottles. Maximum average production is for flavour Y.