1954年6月号问题本期问题的解答请读者在7月20日以前贴足邮票寄至“北京清华园中国科学院数学研究所数学通报数学问题及解答栏工作组”,以便及时整理送往印刷所刊印.过期者,其姓名将不列在解答者名单中.本期问题的答案及正确解答者名单在本刊9月号本栏内公布. The June, 1954 issue of the issue of this issue invites readers to post stamps by July 20th and send them to the “Tsinghua University Institute of Mathematics, Chinese Academy of Sciences Mathematics Bulletin Mathematics Questions and Answers Working Group” in order to promptly send them to the printing office. For those who have expired, their names will not be included in the list of respondents. The answers to the questions in this issue and the list of correct answers are published in the September issue of this issue.