{"id":1211,"date":"2020-06-12T15:56:36","date_gmt":"2020-06-12T10:26:36","guid":{"rendered":"http:\/\/nachiketjoshi.in\/web\/?p=1211"},"modified":"2022-04-29T13:53:18","modified_gmt":"2022-04-29T08:23:18","slug":"problems-on-percentage","status":"publish","type":"post","link":"https:\/\/nachiketjoshi.in\/web\/problems-on-percentage\/","title":{"rendered":"Problems on percentage"},"content":{"rendered":"<p>1. There are 66 students in a class. If there are 10% more boys than girls, find number of boys.<\/p>\n<p>(A) 30 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (B) 33 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (C) 40 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (D) 35<\/p>\n<p>2. By what percent average of first <em>\u2018k\u2019<\/em> even numbers is more than that of first <em>\u2018k\u2019 <\/em>odd numbers?<\/p>\n<p>(A) 1 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (B) 50% &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (C) 100% &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (D) cannot be determined<\/p>\n<p>3. If radius of a circle is increased by 20%, find the percentage increase in area of circle.<\/p>\n<p>(A) 20% &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (B) 40% &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (C) 44% &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (D) 50%<\/p>\n<p>4. In final exam of class, there are 120 students out of which 35 % students failed. How many students passed?<\/p>\n<p>(A) 78 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (B) 90 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (C) 55 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (D) 68<\/p>\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>1. There are 66 students in a class. If there are 10% more boys than girls, find number of boys. (A) 30 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (B) 33 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (C) 40 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (D) 35 2. By what percent average of first \u2018k\u2019 even&#8230; <a class=\"direadmore\" href=\"https:\/\/nachiketjoshi.in\/web\/problems-on-percentage\/\"> Continue Reading&#8230;<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[9],"tags":[],"_links":{"self":[{"href":"https:\/\/nachiketjoshi.in\/web\/wp-json\/wp\/v2\/posts\/1211"}],"collection":[{"href":"https:\/\/nachiketjoshi.in\/web\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/nachiketjoshi.in\/web\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/nachiketjoshi.in\/web\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/nachiketjoshi.in\/web\/wp-json\/wp\/v2\/comments?post=1211"}],"version-history":[{"count":7,"href":"https:\/\/nachiketjoshi.in\/web\/wp-json\/wp\/v2\/posts\/1211\/revisions"}],"predecessor-version":[{"id":1239,"href":"https:\/\/nachiketjoshi.in\/web\/wp-json\/wp\/v2\/posts\/1211\/revisions\/1239"}],"wp:attachment":[{"href":"https:\/\/nachiketjoshi.in\/web\/wp-json\/wp\/v2\/media?parent=1211"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nachiketjoshi.in\/web\/wp-json\/wp\/v2\/categories?post=1211"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nachiketjoshi.in\/web\/wp-json\/wp\/v2\/tags?post=1211"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}