{"id":2066,"date":"2024-03-05T15:27:19","date_gmt":"2024-03-05T15:27:19","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=2066"},"modified":"2024-03-05T15:27:19","modified_gmt":"2024-03-05T15:27:19","slug":"9-the-total-population-consisting-of-children-adults-and-old-persons-in-900-k-if-in-a-pie-diagram-the-angles-subtended-by-them-at-the-centre-are-100a-180-and-80a-respectively-what","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/9-the-total-population-consisting-of-children-adults-and-old-persons-in-900-k-if-in-a-pie-diagram-the-angles-subtended-by-them-at-the-centre-are-100a-180-and-80a-respectively-what\/","title":{"rendered":"9.The total population consisting of children, adults and old persons in 900 K. If in a pie-diagram, the&#8217; angles subtended by them at the centre are 100\u00c2\u00b0, 180&#8243; and 80\u00c2\u00b0 respectively, what will be their] respective numbers ?"},"content":{"rendered":"<p>\r\n    <!-- Check if it's an AMP page -->\r\n            <!-- Non-AMP version -->\r\n        <div class=\"mcq-container\" data-quiz-id=\"quizState_6a97810b36d8f\">\r\n                                            <div class=\"option\" data-option-key=\"option1\" data-is-correct=\"true\">\r\n                    250 K. 450 K. 200 K                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option2\" data-is-correct=\"false\">\r\n                    210 K, 490 K, 200 K                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option3\" data-is-correct=\"false\">\r\n                    200 K, 450 K. 250 K                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option4\" data-is-correct=\"false\">\r\n                    None of the above                <\/div>\r\n                            \r\n            <!-- Feedback messages for non-AMP -->\r\n            <div class=\"feedback\" data-feedback=\"wrong\">Answer is Right!<\/div>\r\n            <div class=\"feedback\" data-feedback=\"right\">Answer is Wrong!<\/div>\r\n        <\/div>\r\n\r\n        <script>\r\n        document.addEventListener('DOMContentLoaded', function () {\r\n            var containers = document.querySelectorAll('.mcq-container');\r\n\r\n            containers.forEach(function(container) {\r\n                var options = container.querySelectorAll('.option');\r\n                var feedbackSelect = container.querySelector('[data-feedback=\"select\"]');\r\n                var feedbackWrong = container.querySelector('[data-feedback=\"wrong\"]');\r\n                var feedbackRight = container.querySelector('[data-feedback=\"right\"]');\r\n\r\n                options.forEach(function(option) {\r\n                    option.addEventListener('click', function() {\r\n                        var selectedOption = option.getAttribute('data-option-key');\r\n                        var isCorrect = option.getAttribute('data-is-correct') === 'true';\r\n\r\n                        \/\/ Remove previous selections\r\n                        options.forEach(function(opt) {\r\n                            opt.classList.remove('correct', 'incorrect');\r\n                        });\r\n\r\n                        \/\/ Add the correct\/incorrect class\r\n                        if (isCorrect) {\r\n                            option.classList.add('correct');\r\n                            feedbackRight.hidden = false;\r\n                            feedbackWrong.hidden = true;\r\n                        } else {\r\n                            option.classList.add('incorrect');\r\n                            feedbackRight.hidden = true;\r\n                            feedbackWrong.hidden = false;\r\n                        }\r\n\r\n                        \/\/ Hide select feedback\r\n                        feedbackSelect.hidden = true;\r\n                    });\r\n                });\r\n            });\r\n        });\r\n        <\/script>\r\n    \r\n    <!--more--><\/p>\n<p>The correct answer is (a).<\/p>\n<p>The total population is 900 K. The angles subtended by children, adults and old persons at the centre are 100\u00c2\u00b0, 180\u00c2\u00b0 and 80\u00c2\u00b0 respectively. The ratio of these angles is 100:180:80 = 5:9:4. The respective numbers of children, adults and old persons are 5\/18 * 900 = 250 K, 9\/18 * 900 = 450 K and 4\/18 * 900 = 200 K.<\/p>\n<p>Option (b) is incorrect because the total number of people in option (b) is 980 K, which is not equal to the total <div class=\"youtube-subscribe-container\">\r\n        <a href=\"https:\/\/www.youtube.com\/channel\/UCNHT8lW-JmLC68rjBfZhdkg?sub_confirmation=1\" target=\"_blank\" class=\"youtube-subscribe-button\">\r\n            <span class=\"youtube-icon\">\r\n                <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 576 512\">\r\n                    <path d=\"M549.7 124.1c-6.3-23.7-24.8-42.3-48.3-48.6C458.8 64 288 64 288 64S117.2 64 74.6 75.5c-23.5 6.3-42 24.9-48.3 48.6-11.4 42.9-11.4 132.3-11.4 132.3s0 89.4 11.4 132.3c6.3 23.7 24.8 41.5 48.3 47.8C117.2 448 288 448 288 448s170.8 0 213.4-11.5c23.5-6.3 42-24.2 48.3-47.8 11.4-42.9 11.4-132.3 11.4-132.3s0-89.4-11.4-132.3zm-317.5 213.5V175.2l142.7 81.2-142.7 81.2z\"\/>\r\n        <div class=\"telegram-channel-container\">\r\n        <a href=\"https:\/\/t.me\/pscnotes2025\" target=\"_blank\" class=\"telegram-channel-button\">\r\n            <span class=\"telegram-icon\">\r\n                <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 496 512\">\r\n                    <path fill=\"white\" d=\"M248,8C111,8,0,119,0,256s111,248,248,248s248-111,248-248S385,8,248,8z M362,177L320,367c-3,14-10,18-20,14l-56-41l-27,26 c-3,3-5,5-10,5l4-63L323,196c5-5-1-7-8-3l-98,62l-42-13c-9-3-10-9,2-14l162-63C351,160,365,164,362,177z\"\/>\r\n                <\/svg>\r\n            <\/span>\r\n            Join Our Telegram Channel\r\n        <\/a>\r\n    <\/div>         <\/svg>\r\n            <\/span>\r\n            Subscribe on YouTube\r\n        <\/a>\r\n    <\/div> population of 900 K.<\/p>\n<p>Option (c) is incorrect because the ratio of the numbers of people in option (c) is 2:4:5, which is not equal to the ratio of the angles subtended by them at the centre.<\/p>\n<p>Option (d) is incorrect because the answer is not given in any of the options.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Join Our Telegram Channel Subscribe on YouTube<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[30],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v22.2 (Yoast SEO v23.3) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>9.The total population consisting of children, adults and old persons in 900 K. If in a pie-diagram, the&#039; angles subtended by them at the centre are 100\u00c2\u00b0, 180&quot; and 80\u00c2\u00b0 respectively, what will be their] respective numbers ?<\/title>\n<meta name=\"description\" content=\"The total population is 900 K. The angles subtended by children, adults and old persons at the centre are 100\u00c2\u00b0, 180\u00c2\u00b0 and 80\u00c2\u00b0 respectively. The ratio of these angles is 100:180:80 = 5:9:4. The respective numbers of children, adults and old persons are 5\/18 * 900 = 250 K, 9\/18 * 900 = 450 K and 4\/18 * 900 = 200 K.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/exam.pscnotes.com\/mcq\/9-the-total-population-consisting-of-children-adults-and-old-persons-in-900-k-if-in-a-pie-diagram-the-angles-subtended-by-them-at-the-centre-are-100a-180-and-80a-respectively-what\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"9.The total population consisting of children, adults and old persons in 900 K. If in a pie-diagram, the&#039; angles subtended by them at the centre are 100\u00c2\u00b0, 180&quot; and 80\u00c2\u00b0 respectively, what will be their] respective numbers ?\" \/>\n<meta property=\"og:description\" content=\"The total population is 900 K. The angles subtended by children, adults and old persons at the centre are 100\u00c2\u00b0, 180\u00c2\u00b0 and 80\u00c2\u00b0 respectively. The ratio of these angles is 100:180:80 = 5:9:4. The respective numbers of children, adults and old persons are 5\/18 * 900 = 250 K, 9\/18 * 900 = 450 K and 4\/18 * 900 = 200 K.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/exam.pscnotes.com\/mcq\/9-the-total-population-consisting-of-children-adults-and-old-persons-in-900-k-if-in-a-pie-diagram-the-angles-subtended-by-them-at-the-centre-are-100a-180-and-80a-respectively-what\/\" \/>\n<meta property=\"og:site_name\" content=\"MCQ and Quiz for Exams\" \/>\n<meta property=\"article:published_time\" content=\"2024-03-05T15:27:19+00:00\" \/>\n<meta name=\"author\" content=\"rawan239\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"rawan239\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"9.The total population consisting of children, adults and old persons in 900 K. If in a pie-diagram, the' angles subtended by them at the centre are 100\u00c2\u00b0, 180\" and 80\u00c2\u00b0 respectively, what will be their] respective numbers ?","description":"The total population is 900 K. The angles subtended by children, adults and old persons at the centre are 100\u00c2\u00b0, 180\u00c2\u00b0 and 80\u00c2\u00b0 respectively. The ratio of these angles is 100:180:80 = 5:9:4. The respective numbers of children, adults and old persons are 5\/18 * 900 = 250 K, 9\/18 * 900 = 450 K and 4\/18 * 900 = 200 K.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/exam.pscnotes.com\/mcq\/9-the-total-population-consisting-of-children-adults-and-old-persons-in-900-k-if-in-a-pie-diagram-the-angles-subtended-by-them-at-the-centre-are-100a-180-and-80a-respectively-what\/","og_locale":"en_US","og_type":"article","og_title":"9.The total population consisting of children, adults and old persons in 900 K. If in a pie-diagram, the' angles subtended by them at the centre are 100\u00c2\u00b0, 180\" and 80\u00c2\u00b0 respectively, what will be their] respective numbers ?","og_description":"The total population is 900 K. The angles subtended by children, adults and old persons at the centre are 100\u00c2\u00b0, 180\u00c2\u00b0 and 80\u00c2\u00b0 respectively. The ratio of these angles is 100:180:80 = 5:9:4. The respective numbers of children, adults and old persons are 5\/18 * 900 = 250 K, 9\/18 * 900 = 450 K and 4\/18 * 900 = 200 K.","og_url":"https:\/\/exam.pscnotes.com\/mcq\/9-the-total-population-consisting-of-children-adults-and-old-persons-in-900-k-if-in-a-pie-diagram-the-angles-subtended-by-them-at-the-centre-are-100a-180-and-80a-respectively-what\/","og_site_name":"MCQ and Quiz for Exams","article_published_time":"2024-03-05T15:27:19+00:00","author":"rawan239","twitter_card":"summary_large_image","twitter_misc":{"Written by":"rawan239","Est. reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/exam.pscnotes.com\/mcq\/9-the-total-population-consisting-of-children-adults-and-old-persons-in-900-k-if-in-a-pie-diagram-the-angles-subtended-by-them-at-the-centre-are-100a-180-and-80a-respectively-what\/","url":"https:\/\/exam.pscnotes.com\/mcq\/9-the-total-population-consisting-of-children-adults-and-old-persons-in-900-k-if-in-a-pie-diagram-the-angles-subtended-by-them-at-the-centre-are-100a-180-and-80a-respectively-what\/","name":"9.The total population consisting of children, adults and old persons in 900 K. If in a pie-diagram, the' angles subtended by them at the centre are 100\u00c2\u00b0, 180\" and 80\u00c2\u00b0 respectively, what will be their] respective numbers ?","isPartOf":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#website"},"datePublished":"2024-03-05T15:27:19+00:00","dateModified":"2024-03-05T15:27:19+00:00","author":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/5807dafeb27d2ec82344d6cbd6c3d209"},"description":"The total population is 900 K. The angles subtended by children, adults and old persons at the centre are 100\u00c2\u00b0, 180\u00c2\u00b0 and 80\u00c2\u00b0 respectively. The ratio of these angles is 100:180:80 = 5:9:4. The respective numbers of children, adults and old persons are 5\/18 * 900 = 250 K, 9\/18 * 900 = 450 K and 4\/18 * 900 = 200 K.","breadcrumb":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/9-the-total-population-consisting-of-children-adults-and-old-persons-in-900-k-if-in-a-pie-diagram-the-angles-subtended-by-them-at-the-centre-are-100a-180-and-80a-respectively-what\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/exam.pscnotes.com\/mcq\/9-the-total-population-consisting-of-children-adults-and-old-persons-in-900-k-if-in-a-pie-diagram-the-angles-subtended-by-them-at-the-centre-are-100a-180-and-80a-respectively-what\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/exam.pscnotes.com\/mcq\/9-the-total-population-consisting-of-children-adults-and-old-persons-in-900-k-if-in-a-pie-diagram-the-angles-subtended-by-them-at-the-centre-are-100a-180-and-80a-respectively-what\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/exam.pscnotes.com\/mcq\/"},{"@type":"ListItem","position":2,"name":"mcq","item":"https:\/\/exam.pscnotes.com\/mcq\/category\/mcq\/"},{"@type":"ListItem","position":3,"name":"mathematics","item":"https:\/\/exam.pscnotes.com\/mcq\/category\/mcq\/mathematics\/"},{"@type":"ListItem","position":4,"name":"9.The total population consisting of children, adults and old persons in 900 K. 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