Jump to content
BrainDen.com - Brain Teasers
  • 0


Guest
 Share

Question

Rachel and David are twins; Rachel is the OLDER twin. Assume they were born immediately after each other, an infinitesimally small - but nonzero - amount of time apart. During a year in the course of their lives, Rachel celebrates her birthday two days AFTER David does. How is this possible?

Bonus: What is the maximum amount of time by which Rachel and David can be apart in their birthday celebrations during the same year?

Note: For both Rachel and David, these birthday celebrations happen on the actual birthday date -- it cannot be a celebration that occurs at a date earlier or later than the actual birthday date for whatever reasons of convenience. Also, the solution has nothing to do with the theory of relativity or any other over complicated nonsense like that.

Best of luck to you all

Link to comment
Share on other sites

4 answers to this question

Recommended Posts

  • 0
Rachel and David are twins; Rachel is the OLDER twin. Assume they were born immediately after each other, an infinitesimally small - but nonzero - amount of time apart. During a year in the course of their lives, Rachel celebrates her birthday two days AFTER David does. How is this possible?

Bonus: What is the maximum amount of time by which Rachel and David can be apart in their birthday celebrations during the same year?

Note: For both Rachel and David, these birthday celebrations happen on the actual birthday date -- it cannot be a celebration that occurs at a date earlier or later than the actual birthday date for whatever reasons of convenience. Also, the solution has nothing to do with the theory of relativity or any other over complicated nonsense like that.

Best of luck to you all

This has been posted before. That's the only reason I know the answer! :D

Rachel was born on March 1 before her mother, travelling east, crossed the international date line and David was born the day before - February 28th.

David is younger but his birthday comes the day before Rachel's.

On leap years David's birthday is two days before March 1.

Link to comment
Share on other sites

  • 0
This has been posted before. That's the only reason I know the answer! :D

Rachel was born on March 1 before her mother, travelling east, crossed the international date line and David was born the day before - February 28th.

David is younger but his birthday comes the day before Rachel's.

On leap years David's birthday is two days before March 1.

Oh I had the siblings backwards.

Link to comment
Share on other sites

  • 0

o man, im need to post something that hasn't been on here yet

David is on the right side of the date line and Rachel on the left during their b-days and it's a leap year. David celebrates his birthday as usual on Feb 28 which is only Feb 27 for Rachel. Due to the injection of the leap day (Feb 29) she now must wait 3 days until her bday on March 1.

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Answer this question...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...
 Share

  • Recently Browsing   0 members

    • No registered users viewing this page.
×
×
  • Create New...