The watch battery’s life is typically 3 years, and we are given that the battery is 18 months old. To find out what portion of its life remains, we need to compare the remaining time with the total battery life.<\/p>\n\n\n\n
Step 1: Convert the time into a consistent unit<\/h3>\n\n\n\n
Since the typical life of the battery is given in years, we first need to convert 18 months into years. There are 12 months in a year, so: 18\u2009months=1812\u2009years=1.5\u2009years18 \\, \\text{months} = \\frac{18}{12} \\, \\text{years} = 1.5 \\, \\text{years}18months=1218\u200byears=1.5years<\/p>\n\n\n\n
Step 2: Subtract the used time from the total life<\/h3>\n\n\n\n
The total life of the battery is 3 years. Since 1.5 years have already passed, the remaining life is: 3\u2009years\u22121.5\u2009years=1.5\u2009years3 \\, \\text{years} – 1.5 \\, \\text{years} = 1.5 \\, \\text{years}3years\u22121.5years=1.5years<\/p>\n\n\n\n
Step 3: Find the portion of the life remaining<\/h3>\n\n\n\n
Now that we know 1.5 years remain, we can express this as a fraction of the total 3-year life. To do this, we divide the remaining time by the total battery life: 1.5\u2009years3\u2009years=12\\frac{1.5 \\, \\text{years}}{3 \\, \\text{years}} = \\frac{1}{2}3years1.5years\u200b=21\u200b<\/p>\n\n\n\n
Conclusion:<\/h3>\n\n\n\n
The portion of the watch battery’s life that remains is 1\/2<\/strong> or 50%<\/strong>.<\/p>\n\n\n\n This means that half of the battery’s total life remains<\/p>\n\n\n\n The life of a watch battery is typically 3 years. If a watch’s battery is 18 months old what portion of its life remains? The Correct Answer and Explanation is: The watch battery’s life is typically 3 years, and we are given that the battery is 18 months old. To find out what portion of […]<\/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-254110","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/254110","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=254110"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/254110\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=254110"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=254110"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=254110"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}![\"\"](\"https:\/\/learnexams.com\/blog\/wp-content\/uploads\/2025\/07\/learnexams-banner6-363.jpeg\")
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