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Permutations, Combinations, Probability - Download Questions

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Permutations, Combinations, Probability - Download Questions [#permalink] New post 15 Dec 2007, 17:05
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Guys,

Enclosed please find list of 55 different question with explanation. I got this from the GMATClub forum and found very impressive to learn most of the required commonly tested concepts.

I am returning back to the forum so that everyone can use it for hir/her benefit.

Amar

Please discuss specific questions in PS or DS subforums.

MODERATOR

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 [#permalink] New post 15 Dec 2007, 22:20
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thanks a lot, they are very helpful.
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 [#permalink] New post 27 Dec 2007, 22:00
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thanks for the stuff, its really helpful.
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Re: P&C, Probability - Download [#permalink] New post 03 Feb 2009, 23:20
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Thanks a lot, it is very helpfull!
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Re: P&C, Probability - Download [#permalink] New post 19 May 2009, 10:34
Thanks...for the great work
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Re: P&C, Probability - Download [#permalink] New post 24 Jun 2009, 04:22
This was really helpful. Thanks a lot dear!!, such inputs are of great help!!
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Re: P&C, Probability - Download [#permalink] New post 24 Jun 2009, 12:10
This is great. What's the difference b/w the two files?
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Re: P&C, Probability - Download [#permalink] New post 26 Jun 2009, 21:13
thx a lot.Looking for these for a long time.
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Re: P&C, Probability - Download [#permalink] New post 27 Jun 2009, 05:07
Thanks for your help Amar :)
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Re: P&C, Probability - Download [#permalink] New post 29 Jun 2009, 14:46
Thank you so much for your kindness
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Re: P&C, Probability - Download [#permalink] New post 11 Jul 2009, 13:04
thanks a lot :)
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Re: P&C, Probability - Download [#permalink] New post 27 Jul 2009, 22:57
Thaks a lot :o
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Re: P&C, Probability - Download [#permalink] New post 28 Jul 2009, 04:18
thanks, i hope this is helpful.
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Re: P&C, Probability - Download [#permalink] New post 29 Jul 2009, 11:58
To the moderator

Can we include the download to the "Combinations, Permutations, and Probability - References" Sticky post.

Thanks
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Re: P&C, Probability - Download [#permalink] New post 29 Jul 2009, 18:31
I got more than half of the questions wrong in the first try :?
Seems I need a lot of practice.
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Re: P&C, Probability - Download [#permalink] New post 19 Aug 2009, 10:21
Amardeep,

Thank you so much for your very helpful post. I was in the middle of compiling a list of probablity questions myself when I realized that you had already done so.

Thanks again!
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Re: P&C, Probability - Download [#permalink] New post 13 Oct 2009, 10:03
Thanks alot!!
i needed something on this topic!
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Re: P&C, Probability - Download [#permalink] New post 14 Oct 2009, 06:21
Thanks a lot friend, this can come in very handy.
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Re: P&C, Probability - Download [#permalink] New post 24 Oct 2009, 07:56
This is great! Thanks for posting this!
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Re: P&C, Probability - Download [#permalink] New post 25 Oct 2009, 20:03
I have a question regarding the #37 question and the answer given.

37. How many 5 digit numbers can be created if the following terms apply: the leftmost digit is even, the second is odd, the third is a non even prime and the fourth and fifth are two random digits not used before in the number?

a) 2520
b) 3150
c) 3360
d) 6000
e) 7500


37. The best answer is A.
The first digit has 4 options (2,4,6,8 and not 0), the second has 5 options (1,3,5,7,9) the third has 3 options (3,5,7 and not 2), the fourth has 7 options (10-3 used before) and the fifth has 6 options (10-4 used before). The total is 4*5*3*7*6=2520.


Now, it is not mentioned that a number cannot be repeated in for the 3rd digit. Say in the 2nd digit the number is 3 and so it is for the 3rd digit. The structure can be 233--, now for the 4th digit the option is 8 not 7.

Surely then the answer given is not right. But I don't know how to proceed further. Can someone please help? Or am I wrong about the porcess?
Re: P&C, Probability - Download   [#permalink] 25 Oct 2009, 20:03
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