{"id":43,"date":"2022-04-13T09:50:03","date_gmt":"2022-04-13T09:50:03","guid":{"rendered":"http:\/\/10thclass.deltapublications.in\/?page_id=43"},"modified":"2025-07-31T09:28:48","modified_gmt":"2025-07-31T09:28:48","slug":"c-1-simple-interest","status":"publish","type":"page","link":"https:\/\/10thclass.deltapublications.in\/index.php\/c-1-simple-interest\/","title":{"rendered":"C.1 Simple interest"},"content":{"rendered":"\n<h2 class=\"wp-block-heading has-text-align-center has-text-color has-huge-font-size\" style=\"color:#00056d;text-transform:uppercase\"><strong>Simple interest<\/strong><\/h2>\n\n\n\n<figure class=\"wp-block-video\"><video controls src=\"https:\/\/10thclass.deltapublications.in\/wp-content\/uploads\/2023\/08\/Class-10-C.1-__Simple-interest__.mp4\"><\/video><\/figure>\n\n\n\n<p class=\"has-text-color has-link-color has-huge-font-size wp-elements-4dde4300b7763c9a2a860fe18546dfe2\" style=\"color:#74008b;text-transform:uppercase\">key notes:<\/p>\n\n\n\n<p class=\"has-text-align-center has-large-font-size\">i = prt<\/p>\n\n\n\n<p class=\"has-large-font-size\">where:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"has-large-font-size\">i is the interest earned<\/li>\n\n\n\n<li class=\"has-large-font-size\">p is the principal (starting amount)<\/li>\n\n\n\n<li class=\"has-large-font-size\">r is the interest rate expressed as a decimal<\/li>\n\n\n\n<li class=\"has-large-font-size\">t is the time in years<\/li>\n<\/ul>\n\n\n\n<p class=\"has-large-font-size\"><strong>note:<\/strong> To find the total amount in an account, calculate the interest and then add it to the principal.<\/p>\n\n\n\n<figure class=\"wp-block-video\"><video controls src=\"<iframe width=&quot;560&quot; height=&quot;315&quot; src=&quot;https:\/\/www.youtube.com\/embed\/q-zLXuYX5hE?rel=0&quot; title=&quot;YouTube video player&quot; frameborder=&quot;0&quot; allow=&quot;accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share&quot; referrerpolicy=&quot;strict-origin-when-cross-origin&quot; allowfullscreen&gt;<\/iframe&gt;\"><\/video><\/figure>\n\n\n\n<p class=\"has-text-align-center has-text-color has-large-font-size\" style=\"color:#105000\"><strong>Learn with an example<\/strong><\/p>\n\n\n\n<div class=\"wp-block-group has-background has-large-font-size\" style=\"background-color:#ffa9a9\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\">\n<div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<div class=\"wp-block-group has-background-background-color has-background\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<p>Ayana has \u20b950,000 in a savings account that earns 11% interest per year. The interest is not compounded. To the nearest rupee,<\/p>\n\n\n\n<p class=\"has-text-color has-link-color has-large-font-size wp-elements-be0b2493594ff1273c5a8dba1b7c4593\" style=\"color:#b00012\"> how much interest will she earn in 5 years? <\/p>\n\n\n\n<p>Round your answer to the nearest rupee.<\/p>\n<\/div><\/div>\n<\/div><\/div>\n\n\n\n<p>Write the rate as a decimal.<br>11% = 0.11<br>Calculate the interest earned.<br>i = prt<br>= \u20b950,000 \u00b7 0.11 \u00b7 5<br>= \u20b927,500<br>There is no need to round your answer to the nearest rupee, because it is already an<br>even rupee amount.<br>The interest will be \u20b927,500.<\/p>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-group has-background has-large-font-size\" style=\"background-color:#94eee5\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\">\n<div class=\"wp-block-group has-background-background-color has-background\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<p>Lee has \u20b920,000 in a savings account that earns 15% interest per year. The interest is not compounded.<\/p>\n\n\n\n<p class=\"has-text-color has-link-color wp-elements-d6ce36d9b8d847299cae31314fe80c3b\" style=\"color:#b00012\">How much will he have in total in 3 years?<\/p>\n<\/div><\/div>\n\n\n\n<p>Write the rate as a decimal.<br>15% = 0.15<br>Calculate the interest earned.<br>i = prt<br>= \u20b920,000 \u00b7 0.15 \u00b7 3<br>= \u20b99,000<br>Find the total amount by adding the interest to the principal.<br>\u20b99,000 + \u20b920,000 = \u20b929,000<br>The total amount will be \u20b929,000<\/p>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-group has-background has-large-font-size\" style=\"background-color:#aef4b6\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<div class=\"wp-block-group has-background-background-color has-background\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<p>Ayana has \u20b990,000 in a savings account that earns 14% annually. The interest<br>is not compounded. <\/p>\n\n\n\n<p class=\"has-text-color has-link-color wp-elements-fdea265ef8e40473c00a485bbc6cc252\" style=\"color:#b00012\">How much interest will she earn in 4 years?<\/p>\n\n\n\n<p><br>Use the formula i = prt, where i is the interest earned, p is the principal<br>(starting amount), r is the interest rate expressed as a decimal, and t is the<br>time in years. \u20b9_____<\/p>\n<\/div><\/div>\n\n\n\n<p>Write the rate as a decimal.<br>14% = 0.14<br>Calculate the interest earned.<br>i = prt<br>= \u20b990,000 \u00b7 0.14 \u00b7 4<br>= \u20b950,400<br>The interest will be \u20b950,400.00.<\/p>\n<\/div><\/div>\n\n\n\n<p class=\"has-text-color has-large-font-size\" style=\"color:#d90000\">Let&#8217;s Practice!<\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/wordwall.net\/play\/76281\/992\/626\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"500\" src=\"https:\/\/10thclass.deltapublications.in\/wp-content\/uploads\/2023\/05\/Worksheet-1-3-18.png\" alt=\"\" class=\"wp-image-6575\" srcset=\"https:\/\/10thclass.deltapublications.in\/wp-content\/uploads\/2023\/05\/Worksheet-1-3-18.png 500w, https:\/\/10thclass.deltapublications.in\/wp-content\/uploads\/2023\/05\/Worksheet-1-3-18-300x300.png 300w, https:\/\/10thclass.deltapublications.in\/wp-content\/uploads\/2023\/05\/Worksheet-1-3-18-150x150.png 150w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/wordwall.net\/play\/76281\/992\/880\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"500\" src=\"https:\/\/10thclass.deltapublications.in\/wp-content\/uploads\/2023\/05\/Worksheet-1-1-2-18.png\" alt=\"\" class=\"wp-image-6576\" srcset=\"https:\/\/10thclass.deltapublications.in\/wp-content\/uploads\/2023\/05\/Worksheet-1-1-2-18.png 500w, https:\/\/10thclass.deltapublications.in\/wp-content\/uploads\/2023\/05\/Worksheet-1-1-2-18-300x300.png 300w, https:\/\/10thclass.deltapublications.in\/wp-content\/uploads\/2023\/05\/Worksheet-1-1-2-18-150x150.png 150w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><\/figure>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Simple interest key notes: i = prt where: note: To find the total amount in an account, calculate the interest and then add it to the principal. Learn with an example Ayana has \u20b950,000 in a savings account that earns 11% interest per year. The interest is not compounded. To the nearest rupee, how much<a class=\"more-link\" href=\"https:\/\/10thclass.deltapublications.in\/index.php\/c-1-simple-interest\/\">Continue reading <span class=\"screen-reader-text\">&#8220;C.1 Simple interest&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"class_list":["post-43","page","type-page","status-publish","hentry","entry"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/10thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/43","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/10thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/10thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/10thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/10thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/comments?post=43"}],"version-history":[{"count":18,"href":"https:\/\/10thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/43\/revisions"}],"predecessor-version":[{"id":18159,"href":"https:\/\/10thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/43\/revisions\/18159"}],"wp:attachment":[{"href":"https:\/\/10thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/media?parent=43"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}