收藏 Collections from websites

用60升和50升各一个桶,如何准确的量出30升的水?不许借助其他设备,只有两个桶!

60升倒入50升桶,剩余10升。50升桶倒干净,剩下的10升倒进去。60升桶装满再倒到50升桶,因为50升桶已经有10升了,所以60升桶剩下20升。50升桶再倒掉,剩下的20升倒进去。然后再60升桶装满倒进50升桶,因为50升桶已经有20升了,60升只倒进30升,剩下30升。

猜您喜欢

This entry was posted on Saturday, May 18th, 2013 at 3:35 am and is filed under 科学. You can follow any responses to this entry through the RSS 2.0 feed. You can skip to the end and leave a response. Pinging is currently not allowed.




Add Comment

Leave a Reply

Comment Rules

  • Example Rule 1
  • Comment rule 2
  • 3. Bold Rule
  • more...

Copyright ©2017 收藏.