{"common":{"save":0,"post_id":"4801","level":3,"total":10,"point":10,"point_extra":0},"segment":[{"id":"8239","post_id":"4801","mon_id":"1158113","chapter_id":"1158117","question":"<p>G\u1ecdi S là t\u1eadp h\u1ee3p các s\u1ed1 t\u1ef1 nhiên có 3 ch\u1eef s\u1ed1.<\/p><p>Trong các s\u1ed1 <strong>17; 215; 1000; 9<\/strong> s\u1ed1 nào thu\u1ed9c t\u1eadp S?<\/p>","options":["17","215","1000","9"],"correct":"2","level":"3","hint":"","answer":"<p>Vì S là t\u1eadp h\u1ee3p các s\u1ed1 t\u1ef1 nhiên có 3 ch\u1eef s\u1ed1 nên S = { 100; 101; ... ; 998; 999 }<\/p><p>Trong các s\u1ed1 <strong>17; 215; 1000; 9 <\/strong>thì s\u1ed1 thu\u1ed9c t\u1eadp S là s\u1ed1 <span style=\"color:#16a085;\"><strong>215<\/strong><\/span><\/p><p>V\u1eady \u0111áp án \u0111úng là <strong><span style=\"color:#16a085;\">215<\/span>.<\/strong><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"132","test":"1","date":"2021-10-04 02:24:45","option_type":"number","len":0},{"id":"8241","post_id":"4801","mon_id":"1158113","chapter_id":"1158117","question":"<p>T\u1eadp h\u1ee3p sau có bao nhiêu ph\u1ea7n t\u1eed?<\/p><p>M = { x∈<span class=\"math-tex\">$\\mathbb{N}$<\/span> | 12 < x < 99}<\/p>","options":["85","86","87"],"correct":"2","level":"3","hint":"<p>Cách tính s\u1ed1 các s\u1ed1 t\u1ef1 nhiên cách \u0111\u1ec1u nhau là:<\/p><p><strong>(S\u1ed1 cu\u1ed1i - s\u1ed1 \u0111\u1ea7u) : kho\u1ea3ng cách + 1<\/strong><\/p>","answer":"<p>T\u1eadp h\u1ee3p M = { x∈<span class=\"math-tex\">$\\mathbb{N}$<\/span> | 12 < x < 99} g\u1ed3m các s\u1ed1 t\u1ef1 nhiên l\u1edbn h\u01a1n 12 và nh\u1ecf h\u01a1n 99.<\/p><p>Do \u0111ó M = { 13; 14; ...; 97; 98 }<\/p><p>T\u1eeb 13 \u0111\u1ebfn 98 có s\u1ed1 các s\u1ed1 t\u1ef1 nhiên là:<\/p><p> (98 - 13) : 1 + 1 = 86 (s\u1ed1)<\/p><p>Suy ra t\u1eeb 13 \u0111\u1ebfn 98 có 86 s\u1ed1 t\u1ef1 nhiên hay <strong>t\u1eadp M có 86 ph\u1ea7n t\u1eed<\/strong>.<\/p><p>V\u1eady \u0111áp án \u0111úng là <span style=\"color:#16a085;\"><strong>86<\/strong><\/span>.<\/p>","type":"choose","extra_type":"star","time":"0","user_id":"132","test":"1","date":"2021-10-04 02:31:10","option_type":"txt","len":0},{"id":"8244","post_id":"4801","mon_id":"1158113","chapter_id":"1158117","question":"<p>T\u1eadp h\u1ee3p sau có bao nhiêu ph\u1ea7n t\u1eed?<\/p><p>M = { x∈<span class=\"math-tex\">$\\mathbb{N}$<\/span> | 34 < x < 125}<\/p>","options":["89","124 ","90"],"correct":"3","level":"3","hint":"<p>Cách tính s\u1ed1 các s\u1ed1 t\u1ef1 nhiên cách \u0111\u1ec1u nhau là:<\/p><p><strong>(S\u1ed1 cu\u1ed1i - s\u1ed1 \u0111\u1ea7u) : \u0111\u01a1n v\u1ecb kho\u1ea3ng cách + 1<\/strong><\/p>","answer":"<p>T\u1eadp h\u1ee3p M = { x∈<span class=\"math-tex\">$\\mathbb{N}$<\/span> | 34 < x < 125} g\u1ed3m các s\u1ed1 t\u1ef1 nhiên l\u1edbn h\u01a1n 34 và nh\u1ecf h\u01a1n 125.<\/p><p>Do \u0111ó M = { 35; 36; ...; 123; 124 }<\/p><p>T\u1eeb 35 \u0111\u1ebfn 124 có s\u1ed1 các s\u1ed1 t\u1ef1 nhiên là:<\/p><p> (124 - 35) : 1 + 1 = 90 (s\u1ed1)<\/p><p>Suy ra t\u1eeb 35 \u0111\u1ebfn 124 có 90 s\u1ed1 t\u1ef1 nhiên<\/p><p>hay <strong>t\u1eadp M có 90 ph\u1ea7n t\u1eed<\/strong>.<\/p><p>V\u1eady \u0111áp án \u0111úng là <span style=\"color:#16a085;\"><strong>90<\/strong><\/span>.<\/p>","type":"choose","extra_type":"flower","time":"0","user_id":"132","test":"3","date":"2021-10-04 02:35:55","option_type":"txt","len":0}]}
