{"id":3081,"date":"2024-03-05T15:43:14","date_gmt":"2024-03-05T15:43:14","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=3081"},"modified":"2024-03-05T15:43:14","modified_gmt":"2024-03-05T15:43:14","slug":"a-can-complete-a-certain-work-in-4-minutes-b-in-5minutes-c-in-6-minutes-d-in-10-minutes-and-e-in-12-minutes-the-average-number-of-units-of-work-completed-by-then-per-minute-will-be","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/a-can-complete-a-certain-work-in-4-minutes-b-in-5minutes-c-in-6-minutes-d-in-10-minutes-and-e-in-12-minutes-the-average-number-of-units-of-work-completed-by-then-per-minute-will-be\/","title":{"rendered":"A can complete a certain work in 4 minutes, B in 5minutes; C in 6 minutes: D in 10 minutes; and E in 12 minutes. The average number of units of work completed by then per minute will be"},"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_6a97ed526cf0e\">\r\n                                            <div class=\"option\" data-option-key=\"option1\" data-is-correct=\"false\">\r\n                    0.16                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option2\" data-is-correct=\"true\">\r\n                    0.4                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option3\" data-is-correct=\"false\">\r\n                    0.8                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option4\" data-is-correct=\"false\">\r\n                    None of these                <\/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 (b) 0.40.<\/p>\n<p>To find the average number of units of work completed per minute, we first need to find the total number of units of work completed by all five people. We can do this by multiplying the number of units of work each person can <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> complete <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                <\/svg>\r\n            <\/span>\r\n            Subscribe on YouTube\r\n        <\/a>\r\n    <\/div> per minute by the number of minutes it takes them to complete the work:<\/p>\n<ul>\n<li>A can complete 1 unit of work per minute in 4 minutes, so they complete 4 units of work in total.<\/li>\n<li>B can complete 0.8 units of work per minute in 5 minutes, so they complete 4 units of work in total.<\/li>\n<li>C can complete 0.667 units of work per minute in 6 minutes, so they complete 3.99 units of work in total.<\/li>\n<li>D can complete 0.4 units of work per minute in 10 minutes, so they complete 4 units of work in total.<\/li>\n<li>E can complete 0.333 units of work per minute in 12 minutes, so they complete 3 units of work in total.<\/li>\n<\/ul>\n<p>The total number of units of work completed by all five people is 16.<\/p>\n<p>The average number of units of work completed per minute is 16 \/ 5 = 0.40.<\/p>\n<p>Option (a) is incorrect because it is the number of units of work completed by A per minute. Option (c) is incorrect because it is the number of units of work completed by B per minute. Option (d) is incorrect because it is not a valid answer choice.<\/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":[126],"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>A can complete a certain work in 4 minutes, B in 5minutes; C in 6 minutes: D in 10 minutes; and E in 12 minutes. 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