{"id":16457,"date":"2026-04-30T02:52:01","date_gmt":"2026-04-29T20:52:01","guid":{"rendered":"https:\/\/mcqacademy.com\/en\/mcq\/sum-of-first-natural-numbers\/"},"modified":"2026-04-30T02:52:01","modified_gmt":"2026-04-29T20:52:01","slug":"sum-of-first-natural-numbers","status":"publish","type":"mcq","link":"https:\/\/mcqacademy.com\/en\/mcq\/sum-of-first-natural-numbers\/","title":{"rendered":"Sum Of First 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>200<\/li>\n<li>210<\/li>\n<li>220<\/li>\n<li>190<\/li>\n<\/ul>\n","protected":false},"author":39,"featured_media":0,"comment_status":"open","ping_status":"closed","template":"","topic":[2489,2592,2567,2621],"subject":[1425],"education_level":[1894,1895],"class_list":["post-16457","mcq","type-mcq","status-publish","hentry","topic-arithmetic-number-system","topic-arithmetic-series","topic-sequences","topic-summation","subject-mathematics","education_level-grade-8","education_level-ssc"],"mcq_note":"The sum of first n natural numbers is n(n+1)\/2; for n=20 the sum is 20\u00d721\/2 = 210.","mcq_options":[{"right":"no","answer":"200"},{"right":"yes","answer":"210"},{"right":"no","answer":"220"},{"right":"no","answer":"190"}],"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":2567,"title":"Sequences","slug":"sequences"},{"id":2621,"title":"Summation","slug":"summation"}],"_links":{"self":[{"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/mcq\/16457","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=16457"}],"wp:attachment":[{"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/media?parent=16457"}],"wp:term":[{"taxonomy":"topic","embeddable":true,"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/topic?post=16457"},{"taxonomy":"subject","embeddable":true,"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/subject?post=16457"},{"taxonomy":"education_level","embeddable":true,"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/education_level?post=16457"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}