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# What is hundredths digit of decimal z? (1) The tenths digit

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VP
Joined: 22 Aug 2005
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What is hundredths digit of decimal z? (1) The tenths digit [#permalink]  06 Nov 2005, 23:29
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What is hundredths digit of decimal z?

(1) The tenths digit of 100z is 2
(2) The units digit of 1000z is 2
VP
Joined: 22 Aug 2005
Posts: 1120
Location: CA
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Kudos [?]: 48 [0], given: 0

joemama142000 wrote:
A

1) always zero

2) could be 0-9

if z = 0.132, 100z = 13.21 tenths digit 2, hundreths digit 1
Current Student
Joined: 23 Oct 2005
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Schools: Cranfield SOM
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Re: DS: 100th digit [#permalink]  07 Nov 2005, 07:06
duttsit wrote:
What is hundredths digit of decimal z?

(1) The tenths digit of 100z is 2
(2) The units digit of 1000z is 2

E.

z = 0.xyabc.... We need to find the value of y!!!

1) 100z = xy.abc. Tenths digit = a = 2. Insuff
2) 1000z = xya.bc. Units digit = a = 2. Insuff

Taking it together we do not have any additional info to find value of y.

Hence E.
Director
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Re: DS: 100th digit [#permalink]  07 Nov 2005, 14:29
duttsit wrote:
What is hundredths digit of decimal z?

(1) The tenths digit of 100z is 2
(2) The units digit of 1000z is 2

100*.132 = 13.2.. tenth digit is 2..
1000*.1322 = units digit is 2..

I think here 2 would be the repetitive sequence.. hence the hundredth digit should be 2.
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VP
Joined: 22 Aug 2005
Posts: 1120
Location: CA
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OA is E.
guys do try this question.
Director
Joined: 27 Jun 2005
Posts: 513
Location: MS
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E

cause if you multiply the decimal with 100 its hundredths digit will become the unit digit in new number so .... A in InSuff

B multiply the Decimal with 1000 and its Hundredths digit will become the tens digit of new number so InSuff

both also does not help .....hence E

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