{"id":228727,"date":"2025-06-07T13:52:30","date_gmt":"2025-06-07T13:52:30","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=228727"},"modified":"2025-06-07T13:52:32","modified_gmt":"2025-06-07T13:52:32","slug":"a-mattress-store-sold-1330-mattresses-in-one-year","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/06\/07\/a-mattress-store-sold-1330-mattresses-in-one-year\/","title":{"rendered":"A mattress store sold 1,330 mattresses in one year"},"content":{"rendered":"\n<p>A mattress store sold 1,330 mattresses in one year. If 30% of the mattresses sold were king size mattresses, how many king size mattresses did the store sell?<\/p>\n\n\n\n<p><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-ast-global-color-0-color\">The Correct Answer and Explanation is:<\/mark><\/strong><\/p>\n\n\n\n<p>King&nbsp;size&nbsp;mattresses=30%\u00d71330=0.30\u00d71330=399<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u2705 <strong>Correct Answer: 399 king size mattresses<\/strong><\/h3>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u270d\ufe0f <strong>Explanation<\/strong><\/h3>\n\n\n\n<p>Understanding how to calculate percentages is an essential mathematical skill often used in real-life scenarios, including business and sales analysis. In this case, we are given that a mattress store sold a total of 1,330 mattresses over the course of a year, and 30% of those mattresses were king size.<\/p>\n\n\n\n<p>To determine how many of those were king size, we use the concept of <strong>percent<\/strong>, which means &#8220;per hundred.&#8221; So, 30% means 30 out of every 100 mattresses sold were king size. The percentage is converted into a decimal for calculation by dividing by 100:30%=30100=0.3030\\% = \\frac{30}{100} = 0.3030%=10030\u200b=0.30<\/p>\n\n\n\n<p>We then multiply the total number of mattresses sold (1,330) by the decimal form of the percentage (0.30):1330\u00d70.30=3991330 \\times 0.30 = 3991330\u00d70.30=399<\/p>\n\n\n\n<p>This multiplication tells us how many mattresses were king size. The result is <strong>399 mattresses<\/strong>. This means that out of the 1,330 mattresses sold during the year, 399 of them were king size.<\/p>\n\n\n\n<p>This type of calculation is not only useful in school math problems but also in business operations. For instance, a store manager could use this information to determine which mattress size is most popular or to plan future inventory. If 30% of all mattresses sold are king size, then the manager might want to make sure they always have a sufficient stock of that size to meet customer demand.<\/p>\n\n\n\n<p>In conclusion, using percentages allows us to break down data into manageable parts, helping in decision-making, forecasting, and understanding patterns in sales or other measurable quantities.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/learnexams.com\/blog\/wp-content\/uploads\/2025\/06\/learnexams-banner4-607.jpeg\" alt=\"\" class=\"wp-image-228728\"\/><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>A mattress store sold 1,330 mattresses in one year. If 30% of the mattresses sold were king size mattresses, how many king size mattresses did the store sell? The Correct Answer and Explanation is: King&nbsp;size&nbsp;mattresses=30%\u00d71330=0.30\u00d71330=399 \u2705 Correct Answer: 399 king size mattresses \u270d\ufe0f Explanation Understanding how to calculate percentages is an essential mathematical skill often [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","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":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[25],"tags":[],"class_list":["post-228727","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/228727","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/comments?post=228727"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/228727\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=228727"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=228727"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=228727"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}