a:1:{i:0;a:13:{s:2:"id";s:3:"683";s:7:"answer1";s:250:"<p><img class="latex" src="https://chart.googleapis.com/chart?cht=tx&amp;chf=a,s,000000|bg,s,FFFFFF00&amp;chl=%5Cfrac%7B%7B5%20%5Cchoose%202%7D%20%2B%20%7B4%20%5Cchoose%201%7D%7D%7B12%20%5Cchoose%203%7D" alt="\frac{{5 \choose 2} + {4 \choose 1}}{12 \";s:7:"answer2";s:250:"<p><img class="latex" src="https://chart.googleapis.com/chart?cht=tx&amp;chf=a,s,000000|bg,s,FFFFFF00&amp;chl=%5Cfrac%7B%7B5%20%5Cchoose%202%7D%20%5Ccdot%20%7B4%20%5Cchoose%201%7D%7D%7B12%20%5Cchoose%203%7D" alt="\frac{{5 \choose 2} \cdot {4 \choose ";s:7:"answer3";s:250:"<p><img class="latex" src="https://chart.googleapis.com/chart?cht=tx&amp;chf=a,s,000000|bg,s,FFFFFF00&amp;chl=%5Cfrac%7B%7B5%20%5Cchoose%202%7D%20%2B%20%7B4%20%5Cchoose%201%7D%7D%7B9%20%5Cchoose%203%7D" alt="\frac{{5 \choose 2} + {4 \choose 1}}{9 \ch";s:7:"answer4";s:250:"<p><img class="latex" src="https://chart.googleapis.com/chart?cht=tx&amp;chf=a,s,000000|bg,s,FFFFFF00&amp;chl=%5Cfrac%7B%7B5%20%5Cchoose%202%7D%20%5Ccdot%20%7B4%20%5Cchoose%201%7D%7D%7B9%20%5Cchoose%203%7D" alt="\frac{{5 \choose 2} \cdot {4 \choose 1";s:7:"answer5";s:0:"";s:7:"answer6";s:0:"";s:7:"answer7";s:0:"";s:7:"answer8";s:0:"";s:7:"answer9";s:0:"";s:8:"answer10";s:0:"";s:4:"good";s:10:"0001000000";s:8:"question";s:4:"1943";}}