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# If n is a positive integer, what is the tens digit of n? (1)

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If n is a positive integer, what is the tens digit of n? (1) [#permalink]  28 Dec 2005, 08:25
If n is a positive integer, what is the tens digit of n?
(1) The hundreds digit of 10n is 6.
(2) The tens digit of n + 1 is 7.
Director
Joined: 17 Dec 2005
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Location: Germany
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We had this questions one-two weeks ago

1) The only digit that works is 6 so it's sufficient.

2) n can be 69 or 70-78, thus insufficient.

It's A
SVP
Joined: 24 Sep 2005
Posts: 1893
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We had this questions one-two weeks ago

1) The only digit that works is 6 so it's sufficient.

2) n can be 69 or 70-78, thus insufficient.

It's A

agree and tala lagao
SVP
Joined: 05 Apr 2005
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laxieqv wrote:
We had this questions one-two weeks ago

1) The only digit that works is 6 so it's sufficient.

2) n can be 69 or 70-78, thus insufficient.

It's A

agree and tala lagao

hike ...............

okie, nice to hear hindi words from you.
VP
Joined: 06 Jun 2004
Posts: 1059
Location: CA
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Kudos [?]: 47 [0], given: 0

We had this questions one-two weeks ago

1) The only digit that works is 6 so it's sufficient.

2) n can be 69 or 70-78, thus insufficient.

It's A

Concur!
_________________

Don't be afraid to take a flying leap of faith.. If you risk nothing, than you gain nothing...

Director
Joined: 09 Oct 2005
Posts: 722
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Kudos [?]: 12 [0], given: 0

If n is a positive integer, what is the tens digit of n?
(1) The hundreds digit of 10n is 6.
(2) The tens digit of n + 1 is 7.
Guys please explain If n is a positive integer how come we know that it is 2 digits or 3 digits integer or maybe 1 digit integer?
(1) The hundreds digit of 10n is 6. why it cant be 3600 for example?
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