{"id":26863,"date":"2021-06-28T15:03:18","date_gmt":"2021-06-28T09:33:18","guid":{"rendered":"https:\/\/mcq-questions.com\/?p=26863"},"modified":"2022-03-02T10:47:28","modified_gmt":"2022-03-02T05:17:28","slug":"ncert-solutions-for-class-7-maths-chapter-3-ex-3-3","status":"publish","type":"post","link":"https:\/\/mcq-questions.com\/ncert-solutions-for-class-7-maths-chapter-3-ex-3-3\/","title":{"rendered":"NCERT Solutions for Class 7 Maths Chapter 3 Data Handling Ex 3.3"},"content":{"rendered":"

These NCERT Solutions for Class 7 Maths<\/a> Chapter 3 Data Handling Ex 3.3 Questions and Answers are prepared by our highly skilled subject experts.<\/p>\n

NCERT Solutions for Class 7 Maths Chapter 3 Data Handling Exercise 3.3<\/h2>\n

Question 1.
\nUse the bar graph to answer the following questions.
\nData Handling
\n(a) Which is the most popular pet?
\n(b) How many students have dog as a pet?
\n\"NCERT
\nAnswer:
\n(a) Since the bar representing 10<\/span> is the longest, the most popular pet is cat.
\n(b) 8 students have dog as a pet.<\/p>\n

\"NCERT<\/p>\n

Question 2.
\nRead the bar graph which shows the number of books sold by a book store
\nduring five consecutive years and answer the following questions:
\n\"NCERT
\n(i) About how many books were sold in 1989? 1990? 1992?
\n(ii) In which year were about 475 books sold? About 225 books sold?
\n(iii) In which years were fewer than 250 books sold?
\n(iv) Can you explain how you would estimate the number of books sold in 1989?
\nAnswer:
\n(i) Number of books sold:
\nIn 1989 were about 180
\nIn 1990 were about 475
\nIn 1992 were about 225
\n(ii) About 475 books were sold in 1990 and about 225 books were sold in 1992.
\n(iii) Fewer than 250 books were sold in 1989 and 1992.
\n(iv) The height of the bar for 1989 is slightly less than that for 200 books.
\nTherefore, about 180 books were sold in 1989.<\/p>\n

\"NCERT<\/p>\n

Question 3.
\nNumber of children in six different classes are given below. Represent the data on a bar graph.<\/p>\n\n\n\n\n\n\n\n\n\n
Class<\/td>\nNumber of Children<\/td>\n<\/tr>\n
Fifth<\/td>\n135<\/td>\n<\/tr>\n
Sixth<\/td>\n120<\/td>\n<\/tr>\n
Seventh<\/td>\n95<\/td>\n<\/tr>\n
Eighth<\/td>\n100<\/td>\n<\/tr>\n
Ninth<\/td>\n90<\/td>\n<\/tr>\n
Tenth<\/td>\n80<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

(a) How would you choose a scale?
\n(b) Answer the following questions:
\n(i) Which class has the maximum number of children? And the minimum?
\n\"NCERT
\n(ii) Find the ratio of students of class sixth to the students of class eighth.
\nAnswer:
\n(a) Start the scale at 0. The greatest value in the data is 135, so end the scale at a
\nvalue greater than 135 such as 140.
\nUse equal divisions along the axes such as increment of 10.
\n(i) We know that all the bars would lie between 0 and 140.
\n(ii) We choose the scale such that the length between 0 and 140 is neither too long nor too small.
\n(iii) Here we take one unit for 10 children.<\/p>\n

(b) (i) Fifth class has the maximum number of children. Tenth class has the minimum number of
\nchildren.
\n(ii) Ratio of students of class sixth to
\nEighth = 120 : 100 = 12 : 10 = 6 : 5<\/p>\n

\"NCERT<\/p>\n

Question 4.
\nThe performance of a student in 1st<\/sup> Term and 2nd<\/sup> Term is given. Draw a double bar graph choosing appropriate scale and answer the following:
\n\"NCERT
\n(i) In which subject, has the child improved his performance the most?
\n(ii) In which subject is the improvement the least?
\n(iii) Has the performance gone down in any subject?
\nAnswer:
\nThe required double bar graph is given below:
\n\"NCERT
\nThis graph shows the performance of students in st<\/sup> term and 2nd<\/sup> term.
\n(i) The child improved his performance the most in Maths.
\n(ii) The improvement is the least in the subject of social science.
\n(iii) Yes, the performance has gone down in the subject of Hindi.<\/p>\n

Question 5.
\nConsider this data collected from a survey of a colony.
\n\"NCERT
\n(i) Draw a double bar graph choosing an appropriate scale.
\nWhat do you infer from the bar graph?
\n(ii) Which sport is most popular?
\n(iii) Which is more preferred, watching or participating in sports?
\nAnswer:
\n(i) The required \u2018double bar graph\u2019 is given below :
\nFrom the bar graph it is inferred that the people of the colony like cricket the most and athletics the least.
\n(ii) The most popular sport is cricket.
\n(iii) Watching sports is more preferred than participating in sports.
\n\"NCERT<\/p>\n

\"NCERT<\/p>\n

Question 6.
\nTake the data giving the minimum and the maximum temperature of various cities given in the beginning of this Chapter. Plot a double bar graph using the data and answer the following:
\n(i) Which city has the largest difference in the minimum and maximum temperature on the given date?
\n(ii) Which is the hottest city and which is the coldest city?
\n(iii) Name two cities where maximum temperature of one was less than the minimum temperature of the other.
\n(iv) Name the city which has the least difference between its minimum and the maximum temperature.
\nTemperature of cities as on 20.06.2006<\/p>\n\n\n\n\n\n\n\n\n\n\n\n
City<\/td>\nMaximum<\/td>\nMinimum<\/td>\n<\/tr>\n
Ahmedabad<\/td>\n38\u00b0C<\/td>\n29\u00b0C<\/td>\n<\/tr>\n
Amritsar<\/td>\n37\u00b0C<\/td>\n26\u00b0C<\/td>\n<\/tr>\n
Bengaluru<\/td>\n28\u00b0C<\/td>\n21\u00b0C<\/td>\n<\/tr>\n
Chennai<\/td>\n36\u00b0C<\/td>\n27\u00b0C<\/td>\n<\/tr>\n
Delhi<\/td>\n38\u00b0C<\/td>\n28\u00b0C<\/td>\n<\/tr>\n
Jaipur<\/td>\n39\u00b0C<\/td>\n29\u00b0C<\/td>\n<\/tr>\n
Jammu<\/td>\n41\u00b0C<\/td>\n26\u00b0C<\/td>\n<\/tr>\n
Mumbai<\/td>\n32\u00b0C<\/td>\n27\u00b0C<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Answer:
\nPlotting a double bar graph, we get.
\nCity Difference in the minimum and maximum temperature on 20-06-2006<\/p>\n\n\n\n\n\n\n\n\n\n\n\n
City<\/td>\nDifference in the minimum and maximum temperature on 20-06-2006<\/td>\n<\/tr>\n
Ahmedabad<\/td>\n38\u00b0C – 29\u00b0C = 9\u00b0C<\/td>\n<\/tr>\n
Amritsar<\/td>\n37\u00b0C – 26\u00b0C = trC<\/td>\n<\/tr>\n
Bengaluru<\/td>\n28\u00b0C – 21\u00b0C = 7\u00b0C<\/td>\n<\/tr>\n
Chennai<\/td>\n36\u00b0C – 27\u00b0C = 9\u00b0C<\/td>\n<\/tr>\n
Delhi<\/td>\n38\u00b0C – 28\u00b0C = 10\u00b0C<\/td>\n<\/tr>\n
Jaipur<\/td>\n39\u00b0C – 29\u00b0C = 10\u00b0C<\/td>\n<\/tr>\n
Jammu<\/td>\n41\u00b0C – 26\u00b0C = 15\u00b0C<\/td>\n<\/tr>\n
Mumbai<\/td>\n32\u00b0C – 27\u00b0C = 5\u00b0C<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\"NCERT
\n(i) Jammu has the largest difference in the minimum and maximum temperatures on the given data.
\n(ii) Jammu is the hottest city and Bengaluru is the coldest city.
\n(iii) Bangaluru and Jaipur or Bengaluru and Ahmedabad.
\n(iv) Mumbai has the least difference between its maximum temperature and minimum temperature.<\/p>\n","protected":false},"excerpt":{"rendered":"

These NCERT Solutions for Class 7 Maths Chapter 3 Data Handling Ex 3.3 Questions and Answers are prepared by our highly skilled subject experts. NCERT Solutions for Class 7 Maths Chapter 3 Data Handling Exercise 3.3 Question 1. Use the bar graph to answer the following questions. Data Handling (a) Which is the most popular …<\/p>\n

NCERT Solutions for Class 7 Maths Chapter 3 Data Handling Ex 3.3<\/span> Read More »<\/a><\/p>\n","protected":false},"author":9,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"default","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"default","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","spay_email":""},"categories":[9],"tags":[],"yoast_head":"\nNCERT Solutions for Class 7 Maths Chapter 3 Data Handling Ex 3.3 - MCQ Questions<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/mcq-questions.com\/ncert-solutions-for-class-7-maths-chapter-3-ex-3-3\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"NCERT Solutions for Class 7 Maths Chapter 3 Data Handling Ex 3.3 - MCQ Questions\" \/>\n<meta property=\"og:description\" content=\"These NCERT Solutions for Class 7 Maths Chapter 3 Data Handling Ex 3.3 Questions and Answers are prepared by our highly skilled subject experts. 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