{"common":{"save":0,"post_id":"8203","level":3,"total":10,"point":10,"point_extra":0},"segment":[{"id":"9220","post_id":"8203","mon_id":"1159278","chapter_id":"1159331","question":"<p>Th\u1ed1ng k&ecirc; s\u1ed1 hoa \u0111i\u1ec3m m\u01b0\u1eddi trong tu\u1ea7n thi \u0111ua c\u1ee7a 100 h\u1ecdc&nbsp;sinh kh\u1ed1i 9 nh\u01b0 sau:<br \/>50&nbsp; 38&nbsp; 35&nbsp; 38&nbsp; 50&nbsp; 38&nbsp; 27&nbsp; 38&nbsp; 47&nbsp; 27&nbsp; 27&nbsp; 35&nbsp; 38&nbsp; 32&nbsp; 38&nbsp; 32&nbsp; 35&nbsp; 32&nbsp; 35&nbsp; 32<br \/>38&nbsp; 38&nbsp; 35&nbsp; 32&nbsp; 35&nbsp; 38&nbsp; 38&nbsp; 50&nbsp; 32&nbsp; 47&nbsp; 27&nbsp; 38&nbsp; 35&nbsp; 27&nbsp; 47&nbsp; 35&nbsp; 38&nbsp; 38&nbsp; 32&nbsp; 35<br \/>35&nbsp; 35&nbsp; 27&nbsp; 32&nbsp; 38&nbsp; 35&nbsp; 32&nbsp; 32&nbsp; 38&nbsp; 32&nbsp; 38&nbsp; 35&nbsp; 27&nbsp; 38&nbsp; 27&nbsp; 38&nbsp; 27&nbsp; 32&nbsp; 38&nbsp; 38<br \/>38&nbsp; 32&nbsp; 38&nbsp; 32&nbsp; 35&nbsp; 27&nbsp; 35&nbsp; 38&nbsp; 32&nbsp; 27&nbsp; 50&nbsp; 32&nbsp; 27&nbsp; 35&nbsp; 47&nbsp; 32&nbsp; 38&nbsp; 27&nbsp; 32&nbsp; 32<br \/>38&nbsp; 27&nbsp; 35&nbsp; 38&nbsp; 35&nbsp; 47&nbsp; 35&nbsp; 38&nbsp; 35&nbsp; 38&nbsp; 35&nbsp; 35&nbsp; 35&nbsp; 35&nbsp; 35&nbsp; 27&nbsp; 50&nbsp; 38&nbsp; 32&nbsp; 38<\/p><p>T\u1ea7n s\u1ed1 t\u01b0\u01a1ng \u0111\u1ed1i c\u1ee7a gi&aacute; tr\u1ecb 32 l&agrave;<\/p>","options":["<strong>A.<\/strong> 15%","<strong>B.<\/strong> 20%","<strong>C.<\/strong> 25%","<strong>D.<\/strong> 30%"],"correct":"2","level":"3","hint":"","answer":"<p>Ch\u1ecdn&nbsp;<span style=\"color:#16a085;\"><strong>B.<\/strong> 20%.<\/span><\/p><p>T\u1ed5ng s\u1ed1 h\u1ecdc sinh l&agrave; 100 n&ecirc;n ta c&oacute; n = 100.<br \/>C&oacute; 20 b\u1ea1n \u0111\u1ea1t 32 hoa \u0111i\u1ec3m m\u01b0\u1eddi n&ecirc;n m = 20.<br \/>T\u1ea7n s\u1ed1 t\u01b0\u01a1ng \u0111\u1ed1i c\u1ee7a gi&aacute; tr\u1ecb 32 l&agrave;:&nbsp;<span class=\"math-tex\">$f=\\dfrac{m}{n}.100\\%=\\dfrac{20}{100}.100\\%=20\\%$<\/span>.<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"127","test":"0","date":"2024-12-22 09:20:11","option_type":"txt","len":0},{"id":"9225","post_id":"8203","mon_id":"1159278","chapter_id":"1159331","question":"<p>Kh\u1ed1i l\u01b0\u1ee3ng th\u1ee9c \u0103n trung b&igrave;nh (\u0111\u01a1n v\u1ecb: gam) trong m\u1ed9t ng&agrave;y&nbsp;cho m\u1ed7i con heo c\u1ee7a m\u1ed9t s\u1ed1 h\u1ed9 gia \u0111&igrave;nh \u0111\u01b0\u1ee3c th\u1ed1ng k&ecirc; nh\u01b0 sau.&nbsp;<\/p><p>2200&nbsp; 2150&nbsp; 2100&nbsp; 2100&nbsp; 2200&nbsp; 2200&nbsp; 2100&nbsp; 2200&nbsp; 2100&nbsp; 2050<\/p><p>2100&nbsp; 2200&nbsp; 2200&nbsp; 2150&nbsp; 2050&nbsp; 2150&nbsp; 2200&nbsp; 2050&nbsp; 2100&nbsp; 2050<\/p><p>2150&nbsp; 2100&nbsp; 2050&nbsp; 2200&nbsp; 2150&nbsp; 2100&nbsp; 2150&nbsp; 2100&nbsp; 2200&nbsp; 2200<\/p><p>2100&nbsp; 2100&nbsp; 2050&nbsp; 2150&nbsp; 2100&nbsp; 2150&nbsp; 2150&nbsp; 2100&nbsp; 2150&nbsp; 2100<\/p><p>2100&nbsp; 2050&nbsp; 2100&nbsp; 2200&nbsp; 2200&nbsp; 2100&nbsp; 2100&nbsp; 2150&nbsp; 2200&nbsp; 2150<\/p><p>T\u1ea7n s\u1ed1 t\u01b0\u01a1ng \u0111\u1ed1i c\u1ee7a gi&aacute; tr\u1ecb 2100 l&agrave;:<\/p>","options":["<strong>A.<\/strong> 36%","<strong>B.<\/strong> 30%","<strong>C. <\/strong>28%","<strong>D.<\/strong> 32%"],"correct":"1","level":"3","hint":"","answer":"<p>Ch\u1ecdn&nbsp;<span style=\"color:#16a085;\"><strong>A.<\/strong> 36%.<\/span><\/p><p>H\u1ed9 gia \u0111&igrave;nh c&oacute; t\u1ea5t c\u1ea3 50 con heo, trong \u0111&oacute; c&oacute; 18 con c&oacute; kh\u1ed1i l\u01b0\u1ee3ng th\u1ee9c&nbsp;\u0103n trung b&igrave;nh m\u1ed9t ng&agrave;y l&agrave; 2100 g n&ecirc;n m = 18; n = 50.<br \/>T\u1ea7n s\u1ed1 t\u01b0\u01a1ng \u0111\u1ed1i c\u1ee7a gi&aacute; tr\u1ecb 2100 l&agrave;:&nbsp;<span class=\"math-tex\">$f=\\dfrac{m}{n}.100\\%=\\dfrac{18}{50}.100\\%=36\\%$<\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"127","test":"0","date":"2024-12-22 09:32:48","option_type":"txt","len":0},{"id":"9226","post_id":"8203","mon_id":"1159278","chapter_id":"1159331","question":"<p>Trong b&agrave;i th\u01a1 &ldquo;Qu&ecirc; h\u01b0\u01a1ng&rdquo; c\u1ee7a t&aacute;c gi\u1ea3 \u0110\u1ed7 Trung Qu&acirc;n c&oacute; hai&nbsp;c&acirc;u th\u01a1:&nbsp;<br \/>&ldquo;Qu&ecirc; h\u01b0\u01a1ng n\u1ebfu ai kh&ocirc;ng nh\u1edb<br \/>S\u1ebd kh&ocirc;ng l\u1edbn n\u1ed5i th&agrave;nh ng\u01b0\u1eddi&rdquo;.<br \/>L\u1eadp m\u1eabu d\u1eef li\u1ec7u th\u1ed1ng k&ecirc;, c&aacute;c ch\u1eef c&aacute;i H; N; G; L l\u1ea7n l\u01b0\u1ee3t xu\u1ea5t hi\u1ec7n&nbsp;trong hai c&acirc;u th\u01a1 tr&ecirc;n th&igrave; t\u1ea7n s\u1ed1 t\u01b0\u01a1ng \u0111\u1ed1i c\u1ee7a gi&aacute; tr\u1ecb N l&agrave;:<\/p>","options":["<strong>A.<\/strong> 40%","<strong>B.<\/strong> 42%","<strong>C.<\/strong> 48%","<strong>D.<\/strong> 45%"],"correct":"4","level":"3","hint":"","answer":"<p>Ch\u1ecdn&nbsp;<span style=\"color:#16a085;\"><strong>D.<\/strong> 45%.<\/span><\/p><p>M\u1eabu d\u1eef li\u1ec7u th\u1ed1ng k&ecirc; c&aacute;c ch\u1eef c&aacute;i H; N; G; L l\u1ea7n l\u01b0\u1ee3t xu\u1ea5t hi\u1ec7n trong&nbsp;hai c&acirc;u th\u01a1 tr&ecirc;n l&agrave;: H; N; G; N; H; N; G; N; H; H; N; G; L; N; N; H; N;&nbsp;H; N; G.&nbsp;<br \/>Nh\u01b0 v\u1eady t\u1ea7n s\u1ed1 c\u1ee7a gi&aacute; tr\u1ecb N l&agrave; m = 9.<br \/>T\u1ed5ng s\u1ed1 ch\u1eef c&aacute;i H; N; G; L l&agrave;: n = 20.<br \/>T\u1ea7n s\u1ed1 t\u01b0\u01a1ng \u0111\u1ed1i c\u1ee7a gi&aacute; tr\u1ecb N l&agrave;:&nbsp;<span class=\"math-tex\">$f=\\dfrac{m}{n}.100\\%=\\dfrac{9}{20}.100\\%=45\\%$<\/span>.<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"127","test":"0","date":"2024-12-22 09:36:47","option_type":"txt","len":0}]}