数学题:在一块边长60m的正方形花坛四边种冬青树
- 时间:2020-06-05 20:41:20
- 分类:数学世界
- 阅读:135 次
数学题:在一块边长60m的正方形花坛四边种冬青树,如果四边横行每间隔2m种一棵,竖列每间隔4m种一棵,这个花坛四周种多少棵冬青树?
数学题解答:先算横行种树情况,横行两头都种(即正方形的顶点上要种)。
60÷2+1=31(棵)
31×2=62(棵)
再算竖列种树的情况,此时四个顶点上刚才已经计算过了,所以竖列种树的情况应为两头都不种。
60÷4-1=14(棵)
14×2=28(棵)
62+28=90(棵)
答:这个花坛四周种90棵冬青树。
推荐阅读:Beginner’s Introduction to PHP Memcached Using the Regular Expression to Replace External Links in WordPr 5 Smart Guides In Taking The Best Hosting Provider Checking Subtree of Another Tree using Preorder Traversal or Rec How to Optimize WordPress Website for Speed? How to Compute the Day of the Week using C++? Counting Substrings with Only One Distinct Letter with Different Ukranian Authorities Prevent Security Blogger From Getting Kidna 5 Instagram Tools to Help You Get More Blog Visitors 6 SEO Analysis Tools Every SEO Needs to Know For 2017
- 评论列表
-
- 添加评论