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Shortest distance in Cuboid question

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Shortest distance in Cuboid question  [#permalink]

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New post 12 Oct 2018, 23:56
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A cuboid with dimensions 9*12*15, one ant at point A needs to travel to D. What is the shortest distance between A and D. A is the bottom left point and D is the top right point

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Re: Shortest distance in Cuboid question  [#permalink]

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New post 13 Oct 2018, 00:09
Manipalite wrote:
A cuboid with dimensions 9*12*15, one ant at point A needs to travel to D. What is the shortest distance between A and D. A is the bottom left point and D is the top right point

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Hey Manipalite

Welcome to GMATClub.

I would request you to read the RULES of the forum.
You have violated quite a few of the rules - please repost or edit the original post.

Similar question discussed here:
https://gmatclub.com/forum/an-ant-crawl ... 34454.html

Hope that helps you.
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Re: Shortest distance in Cuboid question  [#permalink]

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New post 13 Oct 2018, 00:18
Manipalite wrote:
A cuboid with dimensions 9*12*15, one ant at point A needs to travel to D. What is the shortest distance between A and D. A is the bottom left point and D is the top right point

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Can you include the answer choices?
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Re: Shortest distance in Cuboid question  [#permalink]

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New post 13 Oct 2018, 00:31
Manipalite wrote:
A cuboid with dimensions 9*12*15, one ant at point A needs to travel to D. What is the shortest distance between A and D. A is the bottom left point and D is the top right point

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Can you edit the question and post figure along with options.
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Shortest distance in Cuboid question  [#permalink]

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New post 13 Oct 2018, 00:42
Manipalite wrote:
A cuboid with dimensions 9*12*15, one ant at point A needs to travel to D. What is the shortest distance between A and D. A is the bottom left point and D is the top right point

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The only way I could imagine the cuboid is as per the attachment.

If we want to find the diagonal then it would be

D^2 = (l+b)^2 + h^2

Then just square root it to find the answer.
= (9+12)^2 + 15^2 = (21)^2 + 15^2 = 441 + 225 = 666 = 9*74

D = 3 sqrt 74.

This is a similar question

https://gmatclub.com/forum/an-insect-is ... 28020.html
Attachments

D04C9750-BBE6-4CA8-AA9A-868EDA391B6C.png
D04C9750-BBE6-4CA8-AA9A-868EDA391B6C.png [ 710.42 KiB | Viewed 155 times ]

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Shortest distance in Cuboid question   [#permalink] 13 Oct 2018, 00:42
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Shortest distance in Cuboid question

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