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Facts: The graph refers to a plane's flight from one location to anoth

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Facts: The graph refers to a plane's flight from one location to anoth  [#permalink]

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New post 18 Mar 2018, 12:16
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File comment: Exam Pack 1 CAT 4 IR
GMATPrep Exam 4 IR.PNG
GMATPrep Exam 4 IR.PNG [ 95.85 KiB | Viewed 1127 times ]


Please explain how to arrive at the 1 part of question's answer !!!

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Re: Facts: The graph refers to a plane's flight from one location to anoth  [#permalink]

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New post 18 Mar 2018, 12:24
gmatexam439 wrote:
Attachment:
GMATPrep Exam 4 IR.PNG


Please explain how to arrive at the 1 part of question's answer !!!


The question asks you to find out at which time interval was the flight
closer to its destination at time - X than at time - Y. This is only possible
when the distance either remains the same or increases after the time
has passed.

If you observe the graph carefully, the only time when the graph is
moving in the opposite direction(is from t=60 to t=80)

Therefore, it is the answer that you looking for. Hope that helps!
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BSchool Forum Moderator
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Joined: 28 Mar 2017
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Re: Facts: The graph refers to a plane's flight from one location to anoth  [#permalink]

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New post 18 Mar 2018, 12:32
pushpitkc wrote:
gmatexam439 wrote:
Attachment:
GMATPrep Exam 4 IR.PNG


Please explain how to arrive at the 1 part of question's answer !!!


The question asks you to find out at which time interval was the flight
closer to its destination at time - X than at time - Y. This is only possible
when the distance either remains the same or increases after the time
has passed.

If you observe the graph carefully, the only time when the graph is
moving in the opposite direction(is from t=60 to t=80)

Therefore, it is the answer that you looking for. Hope that helps!


Suppose I take a flight from Mumbai to Delhi.
At the starting my Distance to destination = 1000 (suppose)
At the starting my time travelled = 0

Now as time elapses my distance from destination will reduce right? So shouldn't the answer be the maximum time elapsed? Because ultimately I will be at the destination when I actually reach Delhi and that is the moment when my time lapsed will be maximum.

I didn't understand you reasoning. Can you please explain w.r.t. my example.
_________________

Kudos if my post helps!

Long And A Fruitful Journey - V21 to V41; If I can, So Can You!!


Preparing for RC my way


My study resources:
1. Useful Formulae, Concepts and Tricks-Quant
2. e-GMAT's ALL SC Compilation
3. LSAT RC compilation
4. Actual LSAT CR collection by Broal
5. QOTD RC (Carcass)
6. Challange OG RC
7. GMAT Prep Challenge RC

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Joined: 26 Feb 2016
Posts: 3188
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Re: Facts: The graph refers to a plane's flight from one location to anoth  [#permalink]

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New post 18 Mar 2018, 13:40
gmatexam439 wrote:
pushpitkc wrote:
gmatexam439 wrote:
Attachment:
GMATPrep Exam 4 IR.PNG


Please explain how to arrive at the 1 part of question's answer !!!


The question asks you to find out at which time interval was the flight
closer to its destination at time - X than at time - Y. This is only possible
when the distance either remains the same or increases after the time
has passed.

If you observe the graph carefully, the only time when the graph is
moving in the opposite direction(is from t=60 to t=80)

Therefore, it is the answer that you looking for. Hope that helps!


Suppose I take a flight from Mumbai to Delhi.
At the starting my Distance to destination = 1000 (suppose)
At the starting my time travelled = 0

Now as time elapses my distance from destination will reduce right? So shouldn't the answer be the maximum time elapsed? Because ultimately I will be at the destination when I actually reach Delhi and that is the moment when my time lapsed will be maximum.

I didn't understand you reasoning. Can you please explain w.r.t. my example.


Here, we are asked to find the distance w.r.t the destination in that
specific timeline. For instance if I had given you two time ranges
and asked you to compare the distances for those ranges,

Option 1 : t=10 to 20 (distance traveled 100 to 75 km) - detour due to turbulence
Option 2 : t=50 to 60 (distance traveled 275 to 375 km)

Here, the plane travels closer to the destination by 100 km in Option 2
but it travels 25 km away from the destination in Option 1. So we can
say that the plane was closer to its destination at t=10 than it was at
t=20 and Option 1 is the answer!

Hope this helps!
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Re: Facts: The graph refers to a plane's flight from one location to anoth  [#permalink]

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New post 02 Oct 2018, 09:20
Can someone explain Q2 in this IR.
GMAT Club Bot
Re: Facts: The graph refers to a plane's flight from one location to anoth &nbs [#permalink] 02 Oct 2018, 09:20
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