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A, B, C, D, E, F, G, and H are all integers, listed in order

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A, B, C, D, E, F, G, and H are all integers, listed in order [#permalink]

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New post 23 Sep 2008, 07:47
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A, B, C, D, E, F, G, and H are all integers, listed in order of increasing size. When these numbers are arranged on a number line, the distance between any two consecutive numbers is constant. If G and H are equal to 512 and 513, respectively, what is the value of A?

-24(512)

-23(512)

-24(56)

23(512)

24(512)

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Re: PS - Number Line/ Number Props [#permalink]

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IgnitedMind wrote:
A, B, C, D, E, F, G, and H are all integers, listed in order of increasing size. When these numbers are arranged on a number line, the distance between any two consecutive numbers is constant. If G and H are equal to 512 and 513, respectively, what is the value of A?

-24(512)

-23(512)

-24(56)

23(512)

24(512)


Looks like there is some problem with question..

Please check..
If question was correct, answer would be 506 which is not the option.
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Re: PS - Number Line/ Number Props [#permalink]

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New post 23 Sep 2008, 08:41
Suresh, I pulled this straight from MGAMT prep... here is a screen:

Image

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Re: PS - Number Line/ Number Props [#permalink]

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New post 23 Sep 2008, 08:43
P.S .... The OA and explanation confuse me and I'm looking for help, will follow up with MGMAT's explanation after some discussion

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Re: PS - Number Line/ Number Props [#permalink]

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New post 23 Sep 2008, 08:47
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IgnitedMind wrote:
Suresh, I pulled this straight from MGAMT prep... here is a screen:

Image



Now it make sense..

difference between G AND H = 5^13 - 5^12 = 4*5^12


value of A = 5^13- 7*difference = 5^13-7* 4*5^12
= 5^12(5-28)= -23*5^12

B
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Re: PS - Number Line/ Number Props [#permalink]

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New post 23 Sep 2008, 11:43
agree with suresh....
though I derived the answer from the value of G :P

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Re: A, B, C, D, E, F, G, and H are all integers, listed in order [#permalink]

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Re: A, B, C, D, E, F, G, and H are all integers, listed in order [#permalink]

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New post 14 Oct 2017, 09:13
Hello from the GMAT Club BumpBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

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Re: A, B, C, D, E, F, G, and H are all integers, listed in order   [#permalink] 14 Oct 2017, 09:13
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