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Here , In this Page Tips and Tricks to Solve Bar Chart is given.
Tips and Tricks to Solve Bar Chart :
- Before you solve any of the questions , first you have to understand what the bar graph is trying to say. Make the habit of scanning of heading firsts. You have to understand whats on the x-axis and y-axis and whats the relation between two in terms of length bars.
- These type of questions are pretty easy to solve. Just interpret the data in your mind. Check the length of bars . The answers will come surely.
- Sometimes the Calculations of one question will help to calculate the calculations of some other question.
Tips and Tricks for Bar Chart
Tips and Tricks for Bar chart :
- Before you solve any of the questions , first you have to understand what the bar graph is trying to say. Make the habit of scanning the heading firsts.
- You have to understand what is on the x-axis and y-axis and what is the relation between two in terms of length bars.
- These type of questions are pretty easy to solve. Just interpret the data in your mind. Check the length of bars . The answers will come surely.
- Sometimes the calculations of one question will help to calculate the calculations of some other question.
- Read the questions along with the instruction carefully.
- Use Approximation in Calculations.
- Effective analysis of given data.
- Do not assume anything other than data provided.
- Skip unnecessary calculations.
- Accuracy is the key factor.
- Clear the fundamentals of DI. DI questions are based on Averages , Percentage and Ratio and Proportion concepts .
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Questions and Answers for Bar Chart
Common Data Question for 1 to 5
Production of paper (in lakh tonnes) by three companies X, Y and Z owned by Ratan Tata over the years is given below in a graph. Study the graph and answer the questions that follow.
In X- axis year is given and in Y- axis Quantity in Lakh Tones is given.
Question 1.
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
Answer: Option B
Explanation:
Required difference
Question 2.
Explanation:
Average production of company X in the period 1998-2000 = [\frac{1}{3} \times (25 + 50 + 40)] = (\frac{115}{3}) lakh tons.
Average production of company Y in the period 1998-2000 = [\frac{1}{3} \times (35 + 40 + 50)] = (\frac{125}{3}) lakh tons.
Required ratio = \frac{\frac{115}{3}}{\frac{125}{3}} = \frac{115}{125} = \frac{23}{25}
Question 3.
Explanation:
In 1999 Production of Paper X = 50
In 1999 Production of Paper Y = 40
Required Percentage = \frac{50}{40}\times 100 = 125 %
Question 4.
Which company has the highest average production over a five-year period?
(A) X
(B) Y
(C) Z
(D) X and Z both
Answer: Option D
Explanation:
Average production (in lakh tons) in five years for the three companies are:
For Company X = [1/5 x (30 + 45 + 25 + 50 + 40) ] = 190/5 = 38.
For Company Y = [1/5 x (25 + 35 + 35 + 40 + 50) ] = 185/5 = 37.
For Company Z = [1/5 x (35 + 40 + 45 + 35 + 35) ] = 190/5 = 38.
Therefore, Average production of five years is maximum for both the Companies X and Z.
Question 5.
What is the percentage increase in the production of Company Y from 1996 to 1999?
(A) 30%
(B) 60%
(C) 50%
(D) 45%
Answer: Option B
Explanation:
Percentage increase in the production of Company Y from 1996 to 1999
= [ \frac{(40-25)}{25} * 100 ] %
= [ \frac{15}{25} * 100 ] %
= 60%.
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