高考问答非诚勿扰歌曲出场曲:a math problem in english
来源：百度文库 编辑：高考问答 时间：2024/05/07 16:08:07
A certain school event was open only to juniors and seniors.Half the number f juniors who had planned to attend actually attended.Double the number of seniors who had planned to attend actually attended. If the ratio of the number of juniors who had planned to attend to the number of seniors who had planned to attend was 4 to 5, then juniors were what fraction of attendees?
i want to know why the answer is 1:6?????????
i want to know why the answer is 1:6?????????