{"id":27696,"date":"2021-07-01T15:09:57","date_gmt":"2021-07-01T09:39:57","guid":{"rendered":"https:\/\/mcq-questions.com\/?p=27696"},"modified":"2022-03-02T10:31:07","modified_gmt":"2022-03-02T05:01:07","slug":"ncert-solutions-for-class-7-maths-chapter-8-ex-8-1","status":"publish","type":"post","link":"https:\/\/mcq-questions.com\/ncert-solutions-for-class-7-maths-chapter-8-ex-8-1\/","title":{"rendered":"NCERT Solutions for Class 7 Maths Chapter 8 Comparing Quantities Ex 8.1"},"content":{"rendered":"

These NCERT Solutions for Class 7 Maths<\/a> Chapter 8 Comparing Quantities Ex 8.1 Questions and Answers are prepared by our highly skilled subject experts.<\/p>\n

NCERT Solutions for Class 7 Maths Chapter 8 Comparing Quantities Exercise 8.1<\/h2>\n

\"NCERT<\/p>\n

Question 1.
\nFind the ratio of
\n(a) \u20b9 5 to 50 paise
\n(b) 15 kg to 210 g
\n(c) 9 m to 27 cm
\n(d) 30 days to 36 hours
\nAnswer:
\n(a) \u20b9 5 = 5 x 100 paise
\n0 = 500 paise
\n\u20b9 5 : 50 paise = 500 paise : 50 paise
\n= 500 : 50
\n= 10 : 1<\/p>\n

\"NCERT<\/p>\n

(b) 15 kg = 15×1000 g
\n= 15000g
\n15 kg to 210 g = 15000: 210 g
\n= 1500 : 21
\n= 500 : 7<\/p>\n

(c) 9 m = 9 x 100 cm
\n= 900 cm
\n9 m : 27 cm= 900 : 27
\n= 100:3 (\u00f79)<\/p>\n

(d) 30 days = 30 x 24 hours
\n= 720 hours
\n30 days : 36 hours = 720 : 36
\n= 20:1 (\u00f736)<\/p>\n

Question 2.
\nIn a computer lab there are 3 computers for every6 students. How many computers will be needed for 24 students?
\nAns: Let x be the required number of computers.
\n3 : x = 6:24
\n\\(\\frac{3}{x}=\\frac{6}{24}\\)
\n6x = 3 x 24
\nx = \\(\\frac{3 \\times 24}{6}\\) = 3 x 4 = 12
\nHence, 12 computers will be needed for 24 students.<\/p>\n

\"NCERT<\/p>\n

Question 3.
\nPopulation of Rajasthan = 570 lakhs and population of UP = 1660 lakhs. Area of Rajasthan = 3 lakh km2 and area of UP = 2 lakh km2<\/sup>.
\n(i) How many people are there per km2 in both these states?
\n(ii) Which state is less populated?
\nAnswer:
\n(i) Population of Rajasthan
\n= 570 lakhs
\nArea of Rajasthan
\n= 3 lakhs km2<\/sup>
\nPopulation per km2<\/sup>
\n= \\(\\frac{570}{3}\\) lakhs km2<\/sup>
\n= 190 lakhs per km2<\/sup>
\nIn Rajasthan, there are 190 lakh people per km2<\/sup>
\nFor UP
\npopulation = 1660 lakhs
\nArea = 2 lakhs per km2<\/sup>
\npopulation per km2<\/sup>
\n= \\(\\frac{1660}{2}\\) per km2<\/sup>
\n= 830 lakhs per km2<\/sup>
\nIn UP, there are 830 lakhs people per km2<\/sup><\/p>\n

\"NCERT<\/p>\n

(ii) 190 lakhs < 830 lakhs
\n\u2234 Rajasthan is less populated state.<\/p>\n","protected":false},"excerpt":{"rendered":"

These NCERT Solutions for Class 7 Maths Chapter 8 Comparing Quantities Ex 8.1 Questions and Answers are prepared by our highly skilled subject experts. NCERT Solutions for Class 7 Maths Chapter 8 Comparing Quantities Exercise 8.1 Question 1. Find the ratio of (a) \u20b9 5 to 50 paise (b) 15 kg to 210 g (c) …<\/p>\n

NCERT Solutions for Class 7 Maths Chapter 8 Comparing Quantities Ex 8.1<\/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":[1],"tags":[],"yoast_head":"\nNCERT Solutions for Class 7 Maths Chapter 8 Comparing Quantities Ex 8.1 - 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-8-ex-8-1\/\" \/>\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 8 Comparing Quantities Ex 8.1 - MCQ Questions\" \/>\n<meta property=\"og:description\" content=\"These NCERT Solutions for Class 7 Maths Chapter 8 Comparing Quantities Ex 8.1 Questions and Answers are prepared by our highly skilled subject experts. 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