मराठी

Study the double bar graph shown below and answer the questions that follow: What information is represented by the above double bar graph? - Mathematics

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प्रश्न

Study the double bar graph shown below and answer the questions that follow:

  1. What information is represented by the above double bar graph?
  2. In which month sales of Brand A decreased as compared to the previous month?
  3. What is the difference in sales of both the Brands for the month of June?
  4. Find the average sales of Brand B for the six months.
  5. List all months for which the sales of Brand B was less than that of Brand A.
  6. Find the ratio of sales of Brand A as compared to Brand B for the month of January.
आलेख
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उत्तर

a. The above double bar graph compares the sale of brands A and B during the months of January to June.

b. We can clearly see from the double bar graph that sales for brand A reduced in the month of March compared to that of February.

c. Sales of brand A in June = 157 lakh and sales of brand B in June = Rs. 54 lakh

Difference in sales = 57 – 54 = Rs. 3 lakh

d. Average sales of brand B

= `"Total sales of brand B in six months from January to June"/6`

= `(36 + 38 + 43 + 35 + 45 + 54)/6`

= `251/6`

= ₹ 41.83 lakh

e. We can clearly see from the double bar graph that sales of brand B is less than sales of brand A in the month of April and June.

f. Sales of brand A in January = 31 and sales of brand B in January = 36

∴ Required ratio = `31/36` or 31: 366

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पाठ 3: Data Handling - Exercise [पृष्ठ ८५]

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एनसीईआरटी एक्झांप्लर Mathematics [English] Class 7
पाठ 3 Data Handling
Exercise | Q 78. | पृष्ठ ८५

संबंधित प्रश्‍न

The performance of students in 1st Term and 2nd Term is given. Draw a double bar graph choosing appropriate scale and answer the following:

Subject English Hindi Maths Science S. science
1st Term (M.M. 100) 67 72 88 81 73
2nd Term (M.M. 100) 70 65 95 85 75
  1. In which subject, has the child improved his performance the most?
  2. In which subject is the improvement the least?
  3. Has the performance gone down in any subject?

The following table shows the number of Buses and Trucks in nearest lakh units. Draw percentage bar-diagram. (Approximate the percentages to the nearest integer)

Year No. of Trucks No. of Buses
2006-2007 47 9
2007-2008 56 13
2008-2009 60 16
2009-2010 63 18

The graph given below gives the actual and expected sales of cars of a company for 6 months. Study the graph and answer the questions that follow.

  1. In which month was the actual sales same as the expected sales?
  2. For which month(s) was (were) the difference in actual and expected sales the maximum?
  3. For which month(s) was (were) the difference in actual and expected sales the least?
  4. What was the total sales of cars in the months–Jan, Feb. and March?
  5. What is the average sales of cars in the last three months?
  6. Find the ratio of sales in the first three months to the last three months

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  1. What information is represented by the axes?
  2. In which subject did she score the highest in Test I?
  3. In which subject did she score the least in Test II?
  4. In which subject did she score the same marks in both the Tests?
  5. What are the marks scored by her in English in Test II?
  6. In which test was the performance better?
  7. In which subject and which test did she score full marks?

In a bar graph, the gap between two consecutive bars may not be the same.


The following bar graph shows the number of houses (out of 100) in a town using different types of fuels for cooking.

Read the bar graph and answer the following questions:

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  1. Which fuel is used in maximum number of houses?
  2. How many houses are using coal as fuel?
  3. Suppose that the total number of houses in the town is 1 lakh.
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Read the bar graph given below and answer the following questions:

Scale: 1 unit = 50 students

  1. What information is given by the bar graph?
  2. In which year is the number of students maximum?
  3. In which year is the number of students twice as that of 2001 – 02?
  4. In which year did the number of students decrease as compared to previous year?
  5. In which year is the increase in number of students maximum as compared to the previous year?

Observe the given bar graph carefully and answer the questions that follow.

  1. What information does the bar graph depict?
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  3. Calculate the increase in production in May over the production in January.
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The data given below shows the production of motorbikes in a factory for some months of two consecutive years.

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2008 2700 3200 6000 5000 4200
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Study the table given above and answer the following questions:

  1. Draw a double bar graph using appropriate scale to depict the above information and compare them.
  2. In which year was the total output the maximum?
  3. Find the mean production for the year 2007.
  4. For which month was the difference between the production for the two years the maximum?
  5. In which month for the year 2008, the production was the maximum?
  6. In which month for the year 2007, the production was the least?

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