# Tips and Tricks and Shortcuts for Bar Chart Questions

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

Here , In this Page Tips and Tricks to Solve Bar Chart is given along with some important points.

## 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

Explanation:

Required difference

= [(45 – 25)  x  1,00,000] tons

= 20,00,000 tons.

### Question 2.

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

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.

In 1999 Production of Paper of X is What Percent of Production of Paper Y.

(A)  25 %
(B)  30 %
(C)  35 %
(D)  22 %
(E) None of these

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

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%

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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