{"id":35617,"date":"2026-04-29T17:13:35","date_gmt":"2026-04-29T11:13:35","guid":{"rendered":"https:\/\/mcqacademy.com\/bn\/mcq\/sum-of-the-first-20-natural-numbers\/"},"modified":"2026-04-29T17:13:35","modified_gmt":"2026-04-29T11:13:35","slug":"sum-of-the-first-20-natural-numbers","status":"publish","type":"mcq","link":"https:\/\/mcqacademy.com\/bn\/mcq\/sum-of-the-first-20-natural-numbers\/","title":{"rendered":"\u09aa\u09cd\u09b0\u09a5\u09ae \u09e8\u09e6 \u09aa\u09cd\u09b0\u09be\u0995\u09c3\u09a4\u09bf\u0995 \u09b8\u0982\u0996\u09cd\u09af\u09be\u09b0 \u09af\u09cb\u0997\u09ab\u09b2"},"content":{"rendered":"<p>\u09aa\u09cd\u09b0\u09a5\u09ae \u09e8\u09e6\u099f\u09bf \u09aa\u09cd\u09b0\u09be\u0995\u09c3\u09a4\u09bf\u0995 \u09b8\u0982\u0996\u09cd\u09af\u09be\u09b0 \u09af\u09cb\u0997\u09ab\u09b2 \u09a8\u09bf\u09b0\u09cd\u09a3\u09af\u09bc \u0995\u09b0\u09c1\u09a8\u0964<\/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":[8356,8371,8480],"subject":[7852],"education_level":[8341,8342],"class_list":["post-35617","mcq","type-mcq","status-publish","hentry","topic-arithmetic-number-system","topic-number-operations","topic-series-and-sequences","subject-mathematics","education_level-grade-8","education_level-ssc"],"mcq_note":"n\u099f\u09bf \u09aa\u09cd\u09b0\u09a5\u09ae \u09aa\u09cd\u09b0\u09be\u0995\u09c3\u09a4\u09bf\u0995 \u09b8\u0982\u0996\u09cd\u09af\u09be\u09b0 \u09af\u09cb\u0997\u09ab\u09b2\u09c7\u09b0 \u09b8\u09c2\u09a4\u09cd\u09b0 \u09ac\u09cd\u09af\u09ac\u09b9\u09be\u09b0 \u0995\u09b0\u09c1\u09a8: n(n+1)\/2. n = 20-\u098f\u09b0 \u099c\u09a8\u09cd\u09af \u09af\u09cb\u0997\u09ab\u09b2 = 20 \u00d7 21 \/ 2 = 210\u0964","mcq_options":[{"right":"no","answer":"190"},{"right":"no","answer":"200"},{"right":"yes","answer":"210"},{"right":"no","answer":"220"}],"multi_answers":"no","subject_terms":[{"id":7852,"title":"\u0997\u09a3\u09bf\u09a4\u09b6\u09be\u09b8\u09cd\u09a4\u09cd\u09b0","slug":"mathematics"}],"topic_terms":[{"id":8356,"title":"\u09aa\u09be\u099f\u09bf\u0997\u09a3\u09bf\u09a4 \u0993 \u09b8\u0982\u0996\u09cd\u09af\u09be \u09aa\u09a6\u09cd\u09a7\u09a4\u09bf","slug":"arithmetic-number-system"},{"id":8371,"title":"\u09b8\u0982\u0996\u09cd\u09af\u09be \u0995\u09cd\u09b0\u09bf\u09af\u09bc\u09be\u0995\u09b2\u09be\u09aa","slug":"number-operations"},{"id":8480,"title":"\u09b8\u09be\u09b0\u09bf \u0993 \u0985\u09a8\u09c1\u0995\u09cd\u09b0\u09ae","slug":"series-and-sequences"}],"_links":{"self":[{"href":"https:\/\/mcqacademy.com\/bn\/wp-json\/wp\/v2\/mcq\/35617","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mcqacademy.com\/bn\/wp-json\/wp\/v2\/mcq"}],"about":[{"href":"https:\/\/mcqacademy.com\/bn\/wp-json\/wp\/v2\/types\/mcq"}],"author":[{"embeddable":true,"href":"https:\/\/mcqacademy.com\/bn\/wp-json\/wp\/v2\/users\/39"}],"replies":[{"embeddable":true,"href":"https:\/\/mcqacademy.com\/bn\/wp-json\/wp\/v2\/comments?post=35617"}],"wp:attachment":[{"href":"https:\/\/mcqacademy.com\/bn\/wp-json\/wp\/v2\/media?parent=35617"}],"wp:term":[{"taxonomy":"topic","embeddable":true,"href":"https:\/\/mcqacademy.com\/bn\/wp-json\/wp\/v2\/topic?post=35617"},{"taxonomy":"subject","embeddable":true,"href":"https:\/\/mcqacademy.com\/bn\/wp-json\/wp\/v2\/subject?post=35617"},{"taxonomy":"education_level","embeddable":true,"href":"https:\/\/mcqacademy.com\/bn\/wp-json\/wp\/v2\/education_level?post=35617"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}