Bar Graph - Data Interpretation Questions and Answers
Bar Graph - Reasoning Questions and Answers with solutions or explanation for interview, entrance tests and competitive exams. Practice online quiz, fully solved examples with detailed answers.
Production of paper (in lakh tonnes) by three companies X, Y and Z over the years. Study the graph and answer the questions that follow.
What is the difference between the production of company Z in 1998 and company Y in 1996?
- A. 2,00,000 tons
- B. 20,00,000 tons
- C. 20,000 tons
- D. 2,00,00,000 tons
- E. None of these
Answer: Option B
= [(45 - 25) * 1,00,000] tones
= 20,00,000 tons.
What is the ratio of the average production of company X in the period 1998-2000 to the average production of company Y in the same period?
- A. 1:1
- B. 15:17
- C. 23:25
- D. 27:29
- E. None of these
Answer: Option C
Average production of company X in the period 1998-2000
= [1/3 * (25 + 50 + 40)] = (115/3) lakh tons.
Average production of company Y in the period 1998-2000
= [1/3 * (35 + 40 + 50)] = (125/3) lakh tons.
Required ratio = (115/3)/(125/3) = 115/125 = 23/25
What is the percentage increase in the production of company Y from 1996 to 1999?
Answer: Option D
Percentage increase in the production of company Y from 1996 to 1999
= [(40 - 25)/25 * 100]% = (15/25 * 100)% = 60%
The average production for five years was maximum for which company?
Answer: Option E
X = [1/5 * (30 + 45 + 25 + 50 + 40)] = 190/5 = 38
Y = [1/5 * (25 + 35 + 35 + 50 + 40)] = 185/5 = 37
Z = [1/5 * (35 + 40 + 45 + 35 + 35)] = 190/5 = 38
Average production of five years in maximum for both the companies X and Z.
In which year was the percentage of production of company Z to the production of company Y the maximum?
Answer: Option A
The percentage of production of company Z to the production of company Z for various years are:
For 1996 = (35/25 * 100)% = 140%
For 1997 = (40/35 * 100)% = 114.29%
For 1998 = (45/35 * 100)% = 128.57%
For 1999 = (35/40 * 100)% = 87.5%
For 2000 = (35/50 * 100)% = 70%
Clearly, this percentage is highest for 1996.
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