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5 Digit Integer.......

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5 Digit Integer....... [#permalink]

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New post 02 May 2009, 16:25
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Manager
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Re: 5 Digit Integer....... [#permalink]

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New post 02 May 2009, 19:21
Lets take 123x7 as an example for this problem, where x is the tens digit.

Statement 1 - When 123x7 is multiplied by 1000, we get 123x7000, where thousands digit is 7. Doesn't give any info about x. Therefore, NOT SUFFICIENT.

Statement 2 - When 123x7 is divided by 1000, we get 12.3x7, where hundredths digit is 7 => x = 7. SUFFICIENT.

Answer B.
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New post 04 May 2009, 21:17
I guess I am missing something here....how come x=7? Question is asking about tens digit...7 is hunderds digit....how can you find x from B???????
goldeneagle94 wrote:
Lets take 123x7 as an example for this problem, where x is the tens digit.

Statement 1 - When 123x7 is multiplied by 1000, we get 123x7000, where thousands digit is 7. Doesn't give any info about x. Therefore, NOT SUFFICIENT.

Statement 2 - When 123x7 is divided by 1000, we get 12.3x7, where hundredths digit is 7 => x = 7. SUFFICIENT.

Answer B.
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Re: 5 Digit Integer....... [#permalink]

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New post 04 May 2009, 21:52
Let the 5 digit integer be abcde. We need to find d.
1. abcde X 1000= abcde000, so the thoudsands digit of this number if e. Therefore we cannot find d from this information. Hence insufficient.
2. abcde/1000= ab.cde
here c is tenth digit and d is hundredth digit. Hence when given the hundredths digit we can say that d=7

hence sufficient.

Remember: tens digit is not same as tenths digit.

123.45: Here 2 is tens digit while 4 is tenths digit

Hence B.
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New post 05 May 2009, 03:29
reply2spg wrote:
I guess I am missing something here....how come x=7? Question is asking about tens digit...7 is hunderds digit....how can you find x from B???????
goldeneagle94 wrote:
Lets take 123x7 as an example for this problem, where x is the tens digit.

Statement 1 - When 123x7 is multiplied by 1000, we get 123x7000, where thousands digit is 7. Doesn't give any info about x. Therefore, NOT SUFFICIENT.

Statement 2 - When 123x7 is divided by 1000, we get 12.3x7, where hundredths digit is 7 => x = 7. SUFFICIENT.

Answer B.



Lets take 123.456

3 - Units Digit
2 - Tens Digit
1 - Hundreds Digit
4 - Tenths Digit
5 - Hundredths Digit
6 - Thousandths Digit
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Re: 5 Digit Integer....... [#permalink]

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New post 06 May 2009, 06:57
Is oa B for this, still I am not agree, why in case number is 77777? Then tens digit is different? We are getting two values and not uniq then IMO it should be

goldeneagle94 wrote:
reply2spg wrote:
I guess I am missing something here....how come x=7? Question is asking about tens digit...7 is hunderds digit....how can you find x from B???????
goldeneagle94 wrote:
Lets take 123x7 as an example for this problem, where x is the tens digit.

Statement 1 - When 123x7 is multiplied by 1000, we get 123x7000, where thousands digit is 7. Doesn't give any info about x. Therefore, NOT SUFFICIENT.

Statement 2 - When 123x7 is divided by 1000, we get 12.3x7, where hundredths digit is 7 => x = 7. SUFFICIENT.

Answer B.



Lets take 123.456

3 - Units Digit
2 - Tens Digit
1 - Hundreds Digit
4 - Tenths Digit
5 - Hundredths Digit
6 - Thousandths Digit
Re: 5 Digit Integer.......   [#permalink] 06 May 2009, 06:57
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5 Digit Integer.......

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