Áö±Ý ÇöÀçÀÇ ³ëÇÏ¿ì ȨÆäÀÌÁö¿¡ Á¡¼ö¸¦ ºÎ¿©ÇÑ´Ù¸é ???
(ÅõÇ¥ÁøÇàÁß, ÃÑÅõÇ¥¼ö: 667Ç¥) 
(a) 100 - 80
(286, 42.9%)
(b) 80 - 50
(280, 42.0%)
(c) 50 - 30
(42, 6.3%)
(d) 30 - 0
(5, 0.7%)
(e) Àß ¸ð¸£°Ú´Ù.
(54, 8.1%)