Get the most accurate MSBSHSE Solutions for Class 7 Maths Chapter 7 Set 31 Joint Bar Graph here. Updated for the 2026-27 academic session, these solutions are based on the latest MSBSHSE textbooks for Class 7 Maths. Our expert-created answers for Class 7 Maths are available for free download in PDF format.
Detailed Chapter 7 Set 31 Joint Bar Graph MSBSHSE Solutions for Class 7 Maths
For Class 7 students, solving MSBSHSE textbook questions is the most effective way to build a strong conceptual foundation. Our Class 7 Maths solutions follow a detailed, step-by-step approach to ensure you understand the logic behind every answer. Practicing these Chapter 7 Set 31 Joint Bar Graph solutions will improve your exam performance.
Class 7 Maths Chapter 7 Set 31 Joint Bar Graph MSBSHSE Solutions PDF
Question 1. The number of saplings planted by schools on World Tree Day is given in the table below. Draw a joint bar graph to show these figures.
| School Name\Name of Sapling | Almond | Karanj | Neem | Ashok | Gulmohar |
|---|---|---|---|---|---|
| Nutan Vidyalaya | 40 | 60 | 72 | 15 | 42 |
| Bharat Vidyalaya | 42 | 38 | 60 | 25 | 40 |
Answer:
ℹ️ चित्र व्याख्या (Diagram Explanation): यह आलेख विश्व वृक्ष दिवस पर स्कूलों द्वारा लगाए गए पौधों की संख्या को दर्शाता है। इसमें नूतन विद्यालय और भारत विद्यालय द्वारा लगाए गए बादाम, करंज, नीम, अशोक और गुलमोहर के पौधों की संख्या को संयुक्त बार ग्राफ के रूप में प्रस्तुत किया गया है। Y-अक्ष पर 'पौधों की संख्या' है, जहाँ 1 सेमी = 10 पौधे का पैमाना लिया गया है, और X-अक्ष पर 'पौधों के नाम' हैं। In simple words: The graph shows how many saplings each of the two schools, Nutan Vidyalaya and Bharat Vidyalaya, planted for different tree types. It's a visual comparison of their efforts using two bars side-by-side for each sapling type.
🎯 Exam Tip: Ensure that the scale on the Y-axis is clearly stated and consistent, and that both the X-axis and Y-axis are properly labeled. Use different patterns or colors for the bars representing each entity (e.g., Nutan Vidyalaya vs. Bharat Vidyalaya) and include a clear legend.
Question 2. The table below shows the number of people who had the different juices at a juice bar on a Saturday and a Sunday. Draw a joint bar graph for this data.
| Days\Fruits | Sweet Lime | Orange | Apple | Pineapple |
|---|---|---|---|---|
| Saturday | 43 | 30 | 56 | 40 |
| Sunday | 59 | 65 | 78 | 67 |
Answer:
ℹ️ चित्र व्याख्या (Diagram Explanation): यह आलेख एक जूस बार में शनिवार और रविवार को अलग-अलग जूस पीने वाले लोगों की संख्या को दर्शाता है। इसमें मीठा नींबू, संतरा, सेब और अनानास का जूस पीने वाले लोगों की संख्या को संयुक्त बार ग्राफ के रूप में दर्शाया गया है। Y-अक्ष पर 'लोगों की संख्या' है, जहाँ 1 सेमी = 10 लोग का पैमाना लिया गया है, और X-अक्ष पर 'फलों के नाम' हैं। In simple words: This graph illustrates the number of people who consumed various fruit juices on Saturday and Sunday. It helps compare the popularity of each juice type on both days.
🎯 Exam Tip: Pay attention to accurately plotting the data points for both categories (Saturday and Sunday) for each fruit. Use distinct visual cues (like shading or color) for each day and clearly label the axes and legend.
Question 3. The following numbers of votes were cast at 5 polling booths during the Gram Panchayat elections. Draw a joint bar graph for this data.
| Persons\Booth No. | 1 | 2 | 3 | 4 | 5 |
|---|---|---|---|---|---|
| Men | 200 | 270 | 560 | 820 | 850 |
| Women | 700 | 240 | 340 | 640 | 470 |
Answer:
ℹ️ चित्र व्याख्या (Diagram Explanation): यह आलेख ग्राम पंचायत चुनावों के दौरान 5 मतदान केंद्रों पर डाले गए वोटों की संख्या को दर्शाता है। इसमें प्रत्येक मतदान केंद्र पर पुरुषों और महिलाओं द्वारा डाले गए वोटों की संख्या को संयुक्त बार ग्राफ के रूप में प्रस्तुत किया गया है। Y-अक्ष पर 'व्यक्तियों की संख्या' है, जहाँ 1 सेमी = 100 लोग का पैमाना लिया गया है, और X-अक्ष पर 'बूथ संख्या' है। In simple words: This graph visually represents the number of votes cast by men and women at five different polling booths during the Gram Panchayat elections. It allows for a quick comparison of voter turnout between genders at each booth.
🎯 Exam Tip: When dealing with large numbers, select an appropriate scale for the Y-axis (e.g., 100 units per cm) to ensure the graph fits well and is easy to read. Clearly distinguish between the bars for 'Men' and 'Women' in the legend.
Question 4. The maximum and minimum temperatures of five Indian cities are given in °C. Draw a joint bar graph for this data.
| City\Temperature | Delhi | Mumbai | Kolkata | Nagpur | Kapurthala |
|---|---|---|---|---|---|
| Maximum temperature | 35 | 32 | 37 | 41 | 37 |
| Minimum temperature | 26 | 25 | 26 | 29 | 26 |
Answer:
ℹ️ चित्र व्याख्या (Diagram Explanation): यह आलेख भारत के पांच शहरों - दिल्ली, मुंबई, कोलकाता, नागपुर और कपूरथला - के अधिकतम और न्यूनतम तापमान को दर्शाता है। तापमान को सेल्सियस (°C) में संयुक्त बार ग्राफ के माध्यम से प्रस्तुत किया गया है। Y-अक्ष पर 'तापमान' है, जहाँ 1 सेमी = 5°C का पैमाना लिया गया है, और X-अक्ष पर 'शहर का नाम' है। In simple words: This graph shows the highest and lowest temperatures recorded in five different Indian cities, allowing for a direct visual comparison of temperature ranges across these cities.
🎯 Exam Tip: Ensure the temperature unit (°C) is clearly mentioned. When representing temperature differences, using distinct bar colors for maximum and minimum temperatures helps in easy differentiation and understanding.
Question 5. The numbers of children vaccinated in one day at the government hospitals in Solapur and Pune are given in the table. Draw a joint bar graph for this data:
| City\Vaccine | D.P.T. (Booster) | Polio (Booster) | Measles | Hepatitis |
|---|---|---|---|---|
| Solapur | 65 | 60 | 65 | 63 |
| Pune | 89 | 87 | 88 | 86 |
Answer:
ℹ️ चित्र व्याख्या (Diagram Explanation): यह आलेख सोलापुर और पुणे के सरकारी अस्पतालों में एक दिन में टीकाकरण किए गए बच्चों की संख्या को दर्शाता है। इसमें D.P.T. (बूस्टर), पोलियो (बूस्टर), खसरा और हेपेटाइटिस के लिए टीकाकरण किए गए बच्चों की संख्या को संयुक्त बार ग्राफ के रूप में प्रस्तुत किया गया है। Y-अक्ष पर 'बच्चों की संख्या' है, जहाँ 1 सेमी = 10 बच्चे का पैमाना लिया गया है, और X-अक्ष पर 'टीकों के नाम' हैं। In simple words: This graph compares the number of children vaccinated for different diseases in Solapur and Pune hospitals on a single day. It helps visualize vaccination coverage for each vaccine type in the two cities.
🎯 Exam Tip: When the data values are relatively close, choose a scale that allows for clear distinction between the bars. Clearly label each vaccine type on the X-axis and differentiate the bars for Solapur and Pune in the legend.
Question 6. The percentage of literate people in the states of Maharashtra and Gujarat are given below. Draw a joint bar graph for this data.
| State\Year | 1971 | 1981 | 1991 | 2001 | 2011 |
|---|---|---|---|---|---|
| Maharashtra | 46 | 57 | 65 | 77 | 83 |
| Gujarat | 40 | 45 | 61 | 69 | 79 |
Answer:
ℹ️ चित्र व्याख्या (Diagram Explanation): यह आलेख महाराष्ट्र और गुजरात राज्यों में विभिन्न वर्षों (1971, 1981, 1991, 2001, 2011) में साक्षर लोगों के प्रतिशत को दर्शाता है। यह डेटा संयुक्त बार ग्राफ के माध्यम से प्रस्तुत किया गया है। Y-अक्ष पर 'साक्षर लोग' का प्रतिशत है, जहाँ 1 सेमी = 10% साक्षर लोग का पैमाना लिया गया है, और X-अक्ष पर 'वर्ष' है। In simple words: This graph illustrates the literacy percentage in Maharashtra and Gujarat over several decades. It visually compares the progress in literacy for both states over time.
🎯 Exam Tip: When plotting percentages, ensure the Y-axis scale is appropriate, typically ranging from 0% to 100%. Clearly mark the years on the X-axis and use distinct patterns or colors for each state in the legend.
Maharashtra Board Class 7 Maths Chapter 7 Joint Bar Graph Practice Set 31 Intext Questions And Activities
Question 1. Observe the graph shown below and answer the following questions. (Textbook pg. no. 51)
(i) In which year did Ajay and Vijay both produce equal quantities of wheat?
(ii) In year 2014, who produced more wheat?
(iii) In year 2013, how much wheat did Ajay and Vijay each produce?
Answer:
ℹ️ चित्र व्याख्या (Diagram Explanation): यह आलेख अजय और विजय द्वारा विभिन्न वर्षों (2011, 2012, 2013, 2014) में उत्पादित गेहूं की मात्रा (क्विंटल में) को दर्शाता है। इसमें दोनों किसानों की उत्पादन क्षमता को संयुक्त बार ग्राफ के रूप में प्रस्तुत किया गया है। Y-अक्ष पर 'उत्पादन (क्विंटल में)' है, जहाँ 1 सेमी = 10 क्विंटल का पैमाना लिया गया है, और X-अक्ष पर 'वर्ष' है।
(i) Both produced equal quantities of wheat in the year 2011.
(ii) Ajay produced more wheat in the year 2014.
(iii) Ajay's wheat production in 2013 = 40 quintal.
Vijay's wheat production in 2013 = 30 quintal. In simple words: By observing the graph, we can see the wheat production of Ajay and Vijay year-wise, allowing us to compare their output, identify years of equal production, and determine who produced more in a specific year.
🎯 Exam Tip: Carefully read the values corresponding to each bar for both entities. Pay attention to the legend to correctly identify which bar represents which person/entity. Horizontal alignment with the Y-axis helps in accurate reading.
Question 2. The minimum and maximum temperature in Pune for five days is given. Read the joint bar graph and answer the questions below: (Textbook pg. no. 52)
(i) What data is shown on X- axis?
(ii) What data is shown on Y- axis?
(iii) Which day had the highest temperature?
(iv) On which day is the minimum temperature the highest?
(v) On Thursday, what is the difference between the minimum and maximum temperature?
(vi) On which day is the difference between the minimum and maximum temperature the greatest?
Answer:
ℹ️ चित्र व्याख्या (Diagram Explanation): यह आलेख पुणे शहर में पांच दिनों (सोमवार से शुक्रवार) के न्यूनतम और अधिकतम तापमान को सेल्सियस (°C) में दर्शाता है। इसमें प्रत्येक दिन के लिए न्यूनतम और अधिकतम तापमान को संयुक्त बार ग्राफ के माध्यम से प्रस्तुत किया गया है। Y-अक्ष पर 'तापमान' है, जहाँ 1 सेमी = 5°C का पैमाना लिया गया है, और X-अक्ष पर 'दिन' हैं।
(i) Five days of a week are shown on X - axis.
(ii) Temperature in the city of Pune is shown on Y - axis.
(iii) Monday had the highest temperature.
(iv) The minimum temperature was highest on Wednesday.
(v) Maximum temperature = \(29.5^\circ\) C
Minimum temperature = \(15^\circ\) C
\( \implies \) Difference in temperature = \(29.5^\circ\) C - \(15^\circ\) C = \(14.5^\circ\) C
(vi) The difference in minimum and maximum temperature is greatest on Thursday. In simple words: The graph displays the daily high and low temperatures for Pune over five days, allowing us to easily identify temperature extremes, daily variations, and specific differences between maximum and minimum temperatures.
🎯 Exam Tip: When calculating differences, ensure you subtract the minimum value from the maximum value. For graphical analysis, observe the top of the taller bar for maximum and the top of the shorter bar for minimum, and align them with the Y-axis precisely.
Question 3. Collect various kinds of graphs from newspapers and discuss them. (Textbook pg. no. 53)
(i) Histogram
ℹ️ चित्र व्याख्या (Diagram Explanation): यह एक हिस्टोग्राम का उदाहरण है, जो डेटा के वितरण को दर्शाने के लिए बार का उपयोग करता है। इसमें X-अक्ष पर श्रेणियों और Y-अक्ष पर उनकी आवृत्ति को दिखाया गया है। यह दर्शाता है कि डेटा एक निश्चित श्रेणी में कितनी बार आता है।
(ii) Line graph
ℹ️ चित्र व्याख्या (Diagram Explanation): यह एक रेखा ग्राफ का उदाहरण है, जो समय के साथ या किसी अन्य श्रेणी के अनुसार डेटा में परिवर्तनों को दर्शाता है। इसमें X-अक्ष पर समय या श्रेणी और Y-अक्ष पर संबंधित मान दिखाए गए हैं, जिससे रुझानों और परिवर्तनों को ट्रैक करना आसान हो जाता है।
(iii) Pie chart
ℹ️ चित्र व्याख्या (Diagram Explanation): यह एक पाई चार्ट का उदाहरण है, जो पूरे के हिस्सों को एक वृत्त के खंडों के रूप में दर्शाता है। प्रत्येक खंड कुल प्रतिशत का प्रतिनिधित्व करता है, जिससे विभिन्न श्रेणियों के सापेक्ष अनुपात को समझना आसान हो जाता है।
Answer: (Students should attempt the above activities on their own.) In simple words: This question encourages students to actively find and analyze real-world examples of different graph types, fostering a deeper understanding of how data is visually represented and interpreted in daily life.
🎯 Exam Tip: While this is an activity, for similar observation-based questions, describe the key features of each graph type (e.g., bars for frequency in histograms, lines for trends in line graphs, sectors for proportions in pie charts) and their common applications.
MSBSHSE Solutions Class 7 Maths Chapter 7 Set 31 Joint Bar Graph
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Detailed Explanations for Chapter 7 Set 31 Joint Bar Graph
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