{"id":21325,"date":"2026-05-25T22:28:09","date_gmt":"2026-05-25T16:28:09","guid":{"rendered":"https:\/\/mcqacademy.com\/en\/mcq\/work-with-sets-and-venn-diagram-ideas-15\/"},"modified":"2026-05-25T22:28:09","modified_gmt":"2026-05-25T16:28:09","slug":"work-with-sets-and-venn-diagram-ideas-15","status":"publish","type":"mcq","link":"https:\/\/mcqacademy.com\/en\/mcq\/work-with-sets-and-venn-diagram-ideas-15\/","title":{"rendered":"Work with sets and Venn diagram ideas"},"content":{"rendered":"<p>In a class of 39 students, 18 study only Algebra, 7 study only Geometry, and 8 study both. How many study Algebra or Geometry?<\/p>\n<ul class=\"quiz-options\">\n<li>8<\/li>\n<li>25<\/li>\n<li>41<\/li>\n<li>33<\/li>\n<li>39<\/li>\n<\/ul>\n","protected":false},"author":39,"featured_media":0,"comment_status":"open","ping_status":"closed","template":"","topic":[2891,2892],"subject":[2750],"education_level":[1894],"class_list":["post-21325","mcq","type-mcq","status-publish","hentry","topic-sets","topic-venn-diagrams","subject-advanced-mathematics","education_level-grade-8"],"mcq_note":"'Algebra or Geometry' means the union, so add only Algebra + only Geometry + both: 18 + 7 + 8 = 33. The union includes all elements or students that belong to either group. Count shared elements only once, because they are already part of both groups. The correct answer is 33, which matches the calculation or reasoning shown.","mcq_options":[{"right":"no","answer":"8"},{"right":"no","answer":"25"},{"right":"no","answer":"41"},{"right":"yes","answer":"33"},{"right":"no","answer":"39"}],"multi_answers":"no","subject_terms":[{"id":2750,"title":"Advanced Mathematics","slug":"advanced-mathematics"}],"topic_terms":[{"id":2891,"title":"Sets","slug":"sets"},{"id":2892,"title":"Venn Diagrams","slug":"venn-diagrams"}],"_links":{"self":[{"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/mcq\/21325","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=21325"}],"wp:attachment":[{"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/media?parent=21325"}],"wp:term":[{"taxonomy":"topic","embeddable":true,"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/topic?post=21325"},{"taxonomy":"subject","embeddable":true,"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/subject?post=21325"},{"taxonomy":"education_level","embeddable":true,"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/education_level?post=21325"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}