{"common":{"save":0,"post_id":"7563","level":2,"total":10,"point":10,"point_extra":0},"segment":[{"id":"1127","post_id":"7563","mon_id":"1159414","chapter_id":"1159417","question":"<p>Ph&acirc;n s\u1ed1&nbsp;<span class=\"math-tex\">$\\dfrac{15}{30}$<\/span>&nbsp;\u0111\u01b0\u1ee3c vi\u1ebft d\u01b0\u1edbi d\u1ea1ng ph&acirc;n s\u1ed1 th\u1eadp ph&acirc;n:<\/p>","options":["<strong>A.<\/strong> <span class=\"math-tex\">$\\dfrac{3}{10}$<\/span>","<strong>B.<\/strong> <span class=\"math-tex\">$\\dfrac{5}{10}$<\/span>","<strong>C.<\/strong> <span class=\"math-tex\">$\\dfrac{5}{2}$<\/span>","<strong>D.<\/strong> <span class=\"math-tex\">$\\dfrac{1}{3}$<\/span>"],"correct":"2","level":"2","hint":"","answer":"<p>Ch\u1ecdn&nbsp;<span style=\"color:#16a085;\"><strong>B.<\/strong>&nbsp;<span class=\"math-tex\">$\\dfrac{5}{10}$<\/span>.<\/span><\/p><p><span class=\"math-tex\">$\\dfrac{15}{30}=\\dfrac{15:3}{30:3}=\\dfrac{5}{10}$<\/span>.<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2024-08-18 00:50:18","option_type":"math","len":0},{"id":"1129","post_id":"7563","mon_id":"1159414","chapter_id":"1159417","question":"<p>Ph&acirc;n s\u1ed1&nbsp;<span class=\"math-tex\">$\\dfrac{2}{25}$<\/span>&nbsp;\u0111\u01b0\u1ee3c vi\u1ebft d\u01b0\u1edbi d\u1ea1ng ph&acirc;n s\u1ed1 th\u1eadp ph&acirc;n<\/p>","options":["<strong>A.<\/strong> <span class=\"math-tex\">$\\dfrac{2}{100}$<\/span>","<strong>B.<\/strong> <span class=\"math-tex\">$\\dfrac{20}{100}$<\/span>","<strong>C.<\/strong> <span class=\"math-tex\">$\\dfrac{5}{100}$<\/span>","<strong>D.<\/strong> <span class=\"math-tex\">$\\dfrac{8}{100}$<\/span>"],"correct":"4","level":"2","hint":"","answer":"<p>Ch\u1ecdn&nbsp;<span style=\"color:#16a085;\"><strong>D.<\/strong>&nbsp;<span class=\"math-tex\">$\\dfrac{8}{100}$<\/span>.<\/span><\/p><p><span class=\"math-tex\">$\\dfrac{2}{25}=\\dfrac{2\\times4}{25\\times4}=\\dfrac{8}{100}$<\/span>.<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2024-08-18 00:53:41","option_type":"math","len":0},{"id":"1131","post_id":"7563","mon_id":"1159414","chapter_id":"1159417","question":"<p>Ph&acirc;n s\u1ed1&nbsp;<span class=\"math-tex\">$\\dfrac{25}{50}$<\/span>&nbsp;\u0111\u01b0\u1ee3c vi\u1ebft d\u01b0\u1edbi d\u1ea1ng ph&acirc;n s\u1ed1 th\u1eadp ph&acirc;n<\/p>","options":["<strong>A.<\/strong> <span class=\"math-tex\">$\\dfrac{4}{10}$<\/span>","<strong>B.<\/strong> <span class=\"math-tex\">$\\dfrac{5}{10}$<\/span>","<strong>C.<\/strong> <span class=\"math-tex\">$\\dfrac{1}{10}$<\/span>","<strong>D.<\/strong> <span class=\"math-tex\">$\\dfrac{1}{2}$<\/span>"],"correct":"2","level":"2","hint":"","answer":"<p>Ch\u1ecdn&nbsp;<span style=\"color:#16a085;\"><strong>B.<\/strong>&nbsp;<span class=\"math-tex\">$\\dfrac{5}{10}$<\/span>.<\/span><\/p><p><span class=\"math-tex\">$\\dfrac{25}{50}=\\dfrac{25:5}{50:5}=\\dfrac{5}{10}$<\/span>.<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2024-08-18 00:55:48","option_type":"math","len":0}]}