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What is the hundreds digit of the integer z? (1) 10z =

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What is the hundreds digit of the integer z? (1) 10z =  [#permalink]

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New post 06 Jan 2008, 09:28
1
What is the hundreds digit of the integer z?

(1) 10z = 93,120
(2) z rounded to the nearest hundred is 9,300.

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Re: roundings  [#permalink]

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New post 06 Jan 2008, 09:33
1. if 10z = 93,120 then z = 9,312 SUFFICIENT
2. 9312 rounded to nearest hundred is 9,300 but 9285 rounds to 9,300 as well. INSUFFICIENT

Answer A
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Re: roundings  [#permalink]

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New post 06 Jan 2008, 12:10
from stat 1 , you can get the value of z as 9312. Hundreds digit is 3. suff

from stat 2, z can be 9299 or 9301 ... both rounded to the nearest hundred give 9300, but the hundreds digit in both is different. insuff.
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Re: roundings  [#permalink]

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New post 06 Jan 2008, 12:35
marcodonzelli wrote:
What is the hundreds digit of the integer z?

(1) 10z = 93,120
(2) z rounded to the nearest hundred is 9,300.


A.

z=9312 so hundreds digit is 3.

2: could be 9299 or 9301. Insuff.

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Re: What is the hundreds digit of the integer z? (1) 10z =  [#permalink]

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New post 28 Jan 2019, 09:35
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Re: What is the hundreds digit of the integer z? (1) 10z =   [#permalink] 28 Jan 2019, 09:35
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