{"common":{"save":0,"post_id":"711","level":3,"total":10,"point":10,"point_extra":0},"segment":[{"id":"141","post_id":"711","mon_id":"0","chapter_id":"0","question":"\u0110i\u1ec1n s\u1ed1 th\u00edch h\u1ee3p v\u00e0o ch\u1ed7 tr\u1ed1ng","options":{"time":24,"part":[{"title":"\u0110i\u1ec1n s\u1ed1 th\u00edch h\u1ee3p v\u00e0o ch\u1ed7 tr\u1ed1ng","title_trans":"","temp":"fill_the_blank","correct":[[["192"]]],"list":[{"point":10,"width":50,"type_input":"","ques":"B\u1ea1n T\u00e2m \u0111\u00e1nh s\u1ed1 trang s\u00e1ch b\u1eb1ng c\u00e1c s\u1ed1 t\u1ef1 nhi\u00ean t\u1eeb 1 \u0111\u1ebfn 100. B\u1ea1n T\u00e2m c\u1ea7n ph\u1ea3i vi\u1ebft t\u1ea5t c\u1ea3 bao nhi\u00eau ch\u1eef s\u1ed1<br\/> \u0110\u00e1p \u00e1n l\u00e0: _input_ ch\u1eef s\u1ed1","hint":"T\u00ecm s\u1ed1 ch\u1eef s\u1ed1 \u0111\u1ec3 \u0111\u00e1nh s\u1ed1 trang c\u00f3 1 ch\u1eef s\u1ed1, c\u00f3 hai ch\u1eef s\u1ed1, c\u00f3 3 ch\u1eef s\u1ed1 r\u1ed3i t\u00ednh t\u1ed5ng","explain":"<span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/> B\u01b0\u1edbc 1: <\/b> T\u00ecm s\u1ed1 ch\u1eef s\u1ed1 \u0111\u1ec3 \u0111\u00e1nh c\u00e1c trang c\u00f3 1 ch\u1eef s\u1ed1 (1 - 9)<br\/> <b> B\u01b0\u1edbc 2: <\/b> T\u00ecm s\u1ed1 ch\u1eef s\u1ed1 \u0111\u1ec3 \u0111\u00e1nh c\u00e1c trang c\u00f3 hai ch\u1eef s\u1ed1 (10 - 99) <br\/> <b> B\u01b0\u1edbc 3: <\/b> T\u00ecm s\u1ed1 ch\u1eef s\u1ed1 \u0111\u1ec3 \u0111\u00e1nh s\u1ed1 trang c\u00f3 3 ch\u1eef s\u1ed1 (100)<br\/> <b> B\u01b0\u1edbc 4: <\/b> T\u00ecm s\u1ed1 ch\u1eef s\u1ed1 \u0111\u1ec3 \u0111\u00e1nh s\u1ed1 trang c\u1ee7a quy\u1ec3n s\u00e1ch 100 trang<\/span> <br\/><br\/> <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/><br\/> \u0110\u1ec3 \u0111\u00e1nh s\u1ed1 trang t\u1eeb 1 \u0111\u1ebfn 9 c\u1ea7n: <br\/> 9 . 1 = 9 (ch\u1eef s\u1ed1) <br\/> \u0110\u1ec3 \u0111\u00e1nh s\u1ed1 trang t\u1eeb 10 - 99 c\u1ea7n: <br\/> [(99 - 10) + 1] . 2 = 180 (ch\u1eef s\u1ed1) <br\/> \u0110\u1ec3 \u0111\u00e1nh s\u1ed1 cho trang 100 c\u1ea7n: 3 ch\u1eef s\u1ed1<br\/> \u0110\u1ec3 \u0111\u00e1nh s\u1ed1 trang cho quy\u1ec3n s\u00e1ch 100 trang c\u1ea7n: <br\/> 9 + 180 + 3 = 192 (ch\u1eef s\u1ed1)<br\/><span class='basic_pink'>V\u1eady s\u1ed1 c\u1ea7n \u0111i\u1ec1n l\u00e0: 192<\/span>"}]}]},"correct":"","level":"3","hint":"","answer":"","type":"json","extra_type":"","time":"0","user_id":"0","test":"0","date":"2019-09-30 09:14:38"},{"id":"142","post_id":"711","mon_id":"0","chapter_id":"0","question":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","options":{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[1]],"list":[{"point":10,"ques":"T\u1eadp h\u1ee3p E c\u00e1c s\u1ed1 t\u1ef1 nhi\u00ean kh\u00f4ng l\u1edbn h\u01a1n 50 nh\u01b0ng kh\u00f4ng nh\u1ecf h\u01a1n 30 l\u00e0:","select":["A. $E = \\left\\{ x \\in \\mathbb{N}| 30 \\leq x \\leq 50 \\right\\}$ ","B. $E = \\left\\{ x \\in \\mathbb{N}| 30 < x < 50 \\right\\}$ "],"hint":"Kh\u00f4ng l\u1edbn h\u01a1n 50 ngh\u0129a l\u00e0 l\u1ea5y c\u1ea3 ph\u1ea7n t\u1eed 50, kh\u00f4ng nh\u1ecf h\u01a1n 30 ngh\u0129a l\u00e0 l\u1ea5y c\u1ea3 ph\u1ea7n t\u1eed 30","explain":"<span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn: <\/span> <br\/> C\u00e1c s\u1ed1 t\u1ef1 nhi\u00ean x kh\u00f4ng l\u1edbn h\u01a1n 50 ngh\u0129a l\u00e0: $ x \\leq 50$ <br\/> C\u00e1c s\u1ed1 t\u1ef1 nhi\u00ean x kh\u00f4ng nh\u1ecf h\u01a1n 30 ngh\u0129a l\u00e0: $30 \\leq x$<br\/> <br\/><\/span><span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span> <br\/> <br\/>T\u1eadp h\u1ee3p E c\u00e1c s\u1ed1 kh\u00f4ng l\u1edbn h\u01a1n 50 nh\u01b0ng kh\u00f4ng nh\u1ecf h\u01a1n 30 l\u00e0: $30 \\leq x \\leq 50$ <br\/> N\u00ean kh\u1eb3ng \u0111\u1ecbnh ''$E = \\left\\{ x \\in \\mathbb{N}| 30 \\leq x \\leq 50 \\right\\}$'' l\u00e0 <b> \u0110\u00daNG <\/b> <br\/> Kh\u1eb3ng \u0111\u1ecbnh ''$E = \\left\\{ x \\in \\mathbb{N}| 30 < x < 50 \\right\\}$'' l\u00e0 <b> SAI <\/b> <br\/> V\u00ec thi\u1ebfu ph\u1ea7n t\u1eed 30 v\u00e0 50<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: A<\/span>","column":2}]}]},"correct":"","level":"3","hint":"","answer":"","type":"json","extra_type":"","time":"0","user_id":"0","test":"0","date":"2019-09-30 09:14:38"},{"id":"143","post_id":"711","mon_id":"0","chapter_id":"0","question":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","options":{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[3]],"list":[{"point":10,"ques":"Cho t\u1eadp h\u1ee3p A = {40; 41; 42;...; 100} <br\/> Kh\u1eb3ng \u0111\u1ecbnh n\u00e0o sau \u0111\u00e2y \u0111\u00fang:","select":["A. A c\u00f3 40 ph\u1ea7n t\u1eed ","B. A c\u00f3 100 ph\u1ea7n t\u1eed ","C. A c\u00f3 61 ph\u1ea7n t\u1eed ","D. A c\u00f3 60 ph\u1ea7n t\u1eed "],"hint":"T\u00ednh s\u1ed1 s\u1ed1 h\u1ea1ng c\u1ee7a d\u00e3y c\u00e1ch \u0111\u1ec1u 1 \u0111\u01a1n v\u1ecb t\u1eeb 40 \u0111\u1ebfn 100","explain":"<span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn: <\/span> <br\/> S\u1ed1 s\u1ed1 h\u1ea1ng c\u1ee7a d\u00e3y c\u00e1ch \u0111\u1ec1u b\u1eb1ng: <br\/> (s\u1ed1 h\u1ea1ng cu\u1ed1i - s\u1ed1 h\u1ea1ng \u0111\u1ea7u) : kho\u1ea3ng c\u00e1ch + 1<br\/> T\u00ednh s\u1ed1 s\u1ed1 h\u1ea1ng c\u1ee7a d\u00e3y c\u00e1ch \u0111\u1ec1u 1 \u0111\u01a1n v\u1ecb t\u1eeb 40 \u0111\u1ebfn 100<br\/> <br\/><\/span><span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span> <br\/> <br\/> V\u00ec A = {40, 41; 42; 43;...; 100} <br\/> Ta th\u1ea5y c\u00e1c ph\u1ea7n t\u1eed c\u1ee7a A ch\u00ednh l\u00e0 s\u1ed1 s\u1ed1 h\u1ea1ng c\u1ee7a d\u00e3y c\u00e1ch \u0111\u1ec1u 1 \u0111\u01a1n v\u1ecb t\u1eeb 40 \u0111\u1ebfn 100 <br\/> S\u1ed1 ph\u1ea7n t\u1eed c\u1ee7a t\u1eadp h\u1ee3p A l\u00e0: <br\/> (100 - 40) : 1 + 1 = 61 (ph\u1ea7n t\u1eed)<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: C<\/span>","column":2}]}]},"correct":"","level":"3","hint":"","answer":"","type":"json","extra_type":"","time":"0","user_id":"0","test":"0","date":"2019-09-30 09:14:38"}]}