시간 관련 문제

초급)1934 : CD굽기 - http://jungol.co.kr/bbs/board.php?bo_table=pbank&wr_id=1207&sca=99&page=10 

https://thinkmath2020.tistory.com/1148

초급) 1982 : 독서 속도 측정 - http://jungol.co.kr/bbs/board.php?bo_table=pbank&wr_id=1255&sca=99&page=10 

https://thinkmath2020.tistory.com/1188

초급) 1983 : 일진 - http://jungol.co.kr/bbs/board.php?bo_table=pbank&wr_id=1256&sca=99&page=10 

https://thinkmath2020.tistory.com/1189

초급) 2142 : 시간차구하기 - http://jungol.co.kr/bbs/board.php?bo_table=pbank&wr_id=1404&sca=99&page=12 

https://thinkmath2020.tistory.com/1269

초급) 2243 : 시계 - http://jungol.co.kr/bbs/board.php?bo_table=pbank&wr_id=1504&sca=99&page=13 

https://thinkmath2020.tistory.com/1316