What will be the thousands digit of the integer Q : GMAT Data Sufficiency (DS)
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What will be the thousands digit of the integer Q

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What will be the thousands digit of the integer Q [#permalink]

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New post 27 Oct 2012, 00:58
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What will be the thousands digit of the integer Q, given that the thousands digit is a prime number?
(1) Q = 24× 32× 53× 132
(2) Q when rounded off to the nearest ten thousands is 3040000
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Re: What will be the thousands digit of the integer Q [#permalink]

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GMATBaumgartner wrote:
What will be the thousands digit of the integer Q, given that the thousands digit is a prime number?
(1) Q = 24× 32× 53× 132
(2) Q when rounded off to the nearest ten thousands is 3040000


This one is actually pretty straight forward if you dont get into dirty calculations :)

from question we want thousands digit of Q.

Stem 1 , it gives what Q is - whatever be the result of calculation we would have a final number from which we can tell the thousands digit. Sufficient.

Stem 2, it says when Q is rounded off to nearest ten thousand it is 3040000 . Remember we dont have Q yet. From this statement thousand digit could be anything from 0-9 (0-4 will round down to this number 5-9 will round up to this number). Clearly insufficient.

Hence Ans is A.

Hope it helps.
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Re: What will be the thousands digit of the integer Q [#permalink]

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New post 27 Nov 2016, 09:06
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Re: What will be the thousands digit of the integer Q [#permalink]

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New post 27 Nov 2016, 12:57
GMATBaumgartner wrote:
What will be the thousands digit of the integer Q, given that the thousands digit is a prime number?
(1) Q = 24× 32× 53× 132
(2) Q when rounded off to the nearest ten thousands is 3040000


FROM STATEMENT - I ( SUFFICIENT )

By actual calculation we can find the Thousannds digit.

FROM STATEMENT - II ( INSUFFICIENT )

3041000 ~ 3040000
3043000 ~ 3040000

Thus we can have more than one value , so this statement is not sufficient...

So, Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient to answer the question asked, answer will be (A)


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Re: What will be the thousands digit of the integer Q   [#permalink] 27 Nov 2016, 12:57
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