{"id":16299,"date":"2026-04-29T03:39:04","date_gmt":"2026-04-28T21:39:04","guid":{"rendered":"https:\/\/mcqacademy.com\/en\/mcq\/sum-of-first-20-natural-numbers\/"},"modified":"2026-04-29T03:39:04","modified_gmt":"2026-04-28T21:39:04","slug":"sum-of-first-20-natural-numbers","status":"publish","type":"mcq","link":"https:\/\/mcqacademy.com\/en\/mcq\/sum-of-first-20-natural-numbers\/","title":{"rendered":"Sum Of First 20 Natural Numbers"},"content":{"rendered":"<p>Calculate the sum of the first 20 natural numbers.<\/p>\n\n<ul class=\"quiz-options wp-block-list\">\n<li>190<\/li>\n<li>200<\/li>\n<li>210<\/li>\n<li>220<\/li>\n<\/ul>\n","protected":false},"author":39,"featured_media":0,"comment_status":"open","ping_status":"closed","template":"","topic":[2489,2592,2517],"subject":[1425],"education_level":[1894,1895],"class_list":["post-16299","mcq","type-mcq","status-publish","hentry","topic-arithmetic-number-system","topic-arithmetic-series","topic-number-patterns","subject-mathematics","education_level-grade-8","education_level-ssc"],"mcq_note":"Use formula n(n+1)\/2 with n=20: 20\u00d721\/2 = 210, which is the sum of the first 20 natural numbers.","mcq_options":[{"right":"no","answer":"190"},{"right":"no","answer":"200"},{"right":"yes","answer":"210"},{"right":"no","answer":"220"}],"multi_answers":"no","subject_terms":[{"id":1425,"title":"Mathematics","slug":"mathematics"}],"topic_terms":[{"id":2489,"title":"Arithmetic &amp; Number System","slug":"arithmetic-number-system"},{"id":2592,"title":"Arithmetic Series","slug":"arithmetic-series"},{"id":2517,"title":"Number Patterns","slug":"number-patterns"}],"_links":{"self":[{"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/mcq\/16299","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/mcq"}],"about":[{"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/types\/mcq"}],"author":[{"embeddable":true,"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/users\/39"}],"replies":[{"embeddable":true,"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/comments?post=16299"}],"wp:attachment":[{"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/media?parent=16299"}],"wp:term":[{"taxonomy":"topic","embeddable":true,"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/topic?post=16299"},{"taxonomy":"subject","embeddable":true,"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/subject?post=16299"},{"taxonomy":"education_level","embeddable":true,"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/education_level?post=16299"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}