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by muzali » Mon Nov 10, 2008 9:44 pm
Pam and Ed are in a line to purchase tickets. How many people are in the line?
(1) There are 20 people behind Pam and 20 people in front of Ed.
(2) There are 5 people between Pam and Ed.
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Re: DS

by logitech » Mon Nov 10, 2008 9:57 pm
muzali wrote:Pam and Ed are in a line to purchase tickets. How many people are in the line?
(1) There are 20 people behind Pam and 20 people in front of Ed.
(2) There are 5 people between Pam and Ed.
No information is given regarding PAM and ED's position in respect to each other so, I will just go with E.
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by muzali » Mon Nov 10, 2008 10:11 pm
Right!
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by logitech » Mon Nov 10, 2008 10:16 pm
muzali wrote:Right!
muzali there are 5 people between those guys but we dont know which one is standing in front.

So here is a question for you:

What is the maximum and minimum numbers of the people in line according to the information given us ?
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by muzali » Mon Nov 10, 2008 10:38 pm
Two cases:
1. Pam in front of Ed: 35 ppl (1...14,P,16,....20,E,22,....35)
2. Ed in front of Pam:47 ppl (1,..20,E,22,...,26,P,28,...,47)

Possible number: between 35 and 47
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by logitech » Mon Nov 10, 2008 11:02 pm
muzali wrote:Two cases:
1. Pam in front of Ed: 35 ppl (1...14,P,16,....20,E,22,....35)
2. Ed in front of Pam:47 ppl (1,..20,E,22,...,26,P,28,...,47)

Possible number: between 35 and 47


Wonderful! Thank you
LGTCH
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