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Jack set for a tennis club 15 kms away

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Hemant
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Jack set for a tennis club 15 kms away [#permalink] New post   22 Jul 2017, 12:20
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20% (00:45) correct 80% (00:28) wrong based on 10 sessions

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Jack set for a tennis club 15 kms away from his home. From there on he went to gym 8 kms away. How far is Jack now from his home, if he walks in a straight line everywhere?
A) 7
B) 23
C) 17
D) 8
E) all
how option D is true ?
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D
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sandy
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Re: Number System [#permalink] New post   23 Jul 2017, 04:50
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The question is gym is 8km away from where? His home or the gym.

As far as I can tell this is not a GRE Question. GRE Questions are not this poorly worded.
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Re: Number System [#permalink] New post   23 Jul 2017, 15:16
"From there(i.e. tennis club) on he went to gym 8 kms away."
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Re: Number System [#permalink] New post   23 Jul 2017, 18:28
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'From there' is not necessarily the anchor point for the distance of the gym.
For example: From there(i.e. tennis club) on he went to gym 8 kms away. / From there on he went to gym 8 kms away (from his home).

Either way the answer can be 23 or 7 depending upon his direction of motion
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Re: Number System [#permalink] New post   17 Sep 2020, 22:41
I assume that here, maximum is 23 (15+8 =23) and minimum is 7( when 15-8 =7). but the question only stipulates the distance to be a straight line. for example 15 could be straight horizontal and then 8 could be perpendicular to that line, then we have 17 from home. But the 8km could be almost 180 (example 170) back towards the home then it's not 7 but little more than 7 or could be even 8.
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Re: Number System [#permalink]
17 Sep 2020, 22:41
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