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# From 100 to 999, how many integers do not include 2 nor 5

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CEO
Joined: 15 Aug 2003
Posts: 3467
Followers: 61

Kudos [?]: 719 [0], given: 781

From 100 to 999, how many integers do not include 2 nor 5 [#permalink]  18 Dec 2003, 06:00
00:00

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(N/A)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 0 sessions
From 100 to 999, how many integers do not include 2
nor 5 in the digit?

any non brute force approaches?
Intern
Joined: 27 Nov 2003
Posts: 34
Location: Moscow
Followers: 0

Kudos [?]: 1 [0], given: 0

Is it 7*8*8?

Possibilities for the first digit: 1,3,4,6,7,8,9 = 7 variations
For the second and third digit: 0,1,3,,4,6,7,8,9 = 8 variations
_________________

me

Director
Joined: 28 Oct 2003
Posts: 503
Location: 55405
Followers: 1

Kudos [?]: 11 [0], given: 0

Anvar must be right-- seems like a pretty simple question.
Intern
Joined: 22 Nov 2003
Posts: 41
Location: Serbia
Followers: 0

Kudos [?]: 0 [0], given: 0

Titleist wrote:
I agree! 7*8*9=448

I am sure that you thought 7*8*8 ....
Director
Joined: 14 Oct 2003
Posts: 588
Location: On Vacation at My Crawford, Texas Ranch
Followers: 1

Kudos [?]: 10 [0], given: 0

Yes-thanks for pointing that out!
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