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Source: GMATPrep What is the value of positive integer m? a)

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Source: GMATPrep What is the value of positive integer m? a) [#permalink]

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New post 11 Oct 2008, 00:33
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Source: GMATPrep

What is the value of positive integer m?

a) m is divided by 6 , then remainder is 3
b) m is divided by 15, remainder is 6
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Re: DS : Value of m [#permalink]

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New post 11 Oct 2008, 05:32
The answer is E.

(a) m/6 = x + 3 ==> cannot find m
(b) m/15 = y + 6 ==> cannot find m

both together as well you cannot find m.

So ans is E.

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Re: DS : Value of m [#permalink]

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New post 11 Oct 2008, 05:39
E:

21/6 ----3
21/15-----6

51/6 -----3
51/6------6

so m has multiple value.

E..

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Re: DS : Value of m [#permalink]

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New post 12 Oct 2008, 16:10
It has to be...
M= 21, M=111
Both satisfy the given condition

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Re: DS : Value of m [#permalink]

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New post 12 Oct 2008, 16:21
amitdgr wrote:
Source: GMATPrep

What is the value of positive integer m?

a) m is divided by 6 , then remainder is 3
b) m is divided by 15, remainder is 6


FROM 1

M= 6X+3 = 3(2X+1).......INSUFF

FROM 2

M = 15Y+6 = 3(5Y+2).....INSUFF

BOTH

5Y+2 = 2X+1

2X-5Y= 1

X IS 0 OR A +VE INTIGER, THUS X = 3,Y=1 ONLY SATISFIES

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Re: DS : Value of m [#permalink]

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New post 12 Oct 2008, 20:38
amitdgr wrote:
Source: GMATPrep

What is the value of positive integer m?

a) m is divided by 6 , then remainder is 3
b) m is divided by 15, remainder is 6


Guys,

I mistyped the second statement, it should read

b) 15 is divided by m, remainder is 6

I am extremely sorry :( I will take extra care next time
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Re: DS : Value of m   [#permalink] 12 Oct 2008, 20:38
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Source: GMATPrep What is the value of positive integer m? a)

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