Jump to content
BrainDen.com - Brain Teasers
  • 0

Three towns revisited


BMAD
 Share

Question

6 answers to this question

Recommended Posts

  • 0

Couple of questions here. If the towns are all an equal distance from the park, and we're assuming this as the crow flies, where are the towns in relation to one another? If they all happen to be less than 1/3 of the diameter from each other, then the distance is going to be less than going to the park and back. But if they are also spread out more than 1/3 of the diameter of the circle from one another on average, then it would be quicker to walk to the center and back. Also, are we assuming optimal routes, if it's just strictly to each of the other towns, and not round trip?

Link to comment
Share on other sites

  • 0

Couple of questions here. If the towns are all an equal distance from the park, and we're assuming this as the crow flies, where are the towns in relation to one another? If they all happen to be less than 1/3 of the diameter from each other, then the distance is going to be less than going to the park and back. But if they are also spread out more than 1/3 of the diameter of the circle from one another on average, then it would be quicker to walk to the center and back. Also, are we assuming optimal routes, if it's just strictly to each of the other towns, and not round trip?

Thank you for the question.

I meant to state that each town is equal distant to the park and equidistant to each other but the towns may not be the same distance to the park as they are to each other. The trip to the towns is one way A to B to C while going to the park is there and back.

Link to comment
Share on other sites

  • 0

I'm lazy. Let's say the radius from the park at the center to each point is 2. Draw a right triangle, center, pick a vertex, pick a side midpoint. 30:60:90 right triangle has side ratios 1:sqrt(3):2. sqrt(3) is 1/2 a side of the triangle.


Thus, 2 sides of the triangle is 4sqrt(3). City to park to city is 4. sqrt(3)>1, therefore, city-park-city is shorter.

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...