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Director
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If b is the product of three consecutive positive integers [#permalink]
 10 Dec 2003, 18:04
Question Stats:
0% (00:00) correct
 0% (00:00) wrong based on 0 sessions
If b is the product of three consecutive positive integers c, c + 1, and c + 2, is b a multiple of 24 ?
(1) b is a multiple of 3,
(2) c is odd.
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Director
Joined: 28 Oct 2003
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E
first condition
1,2,3=6, not a multiple of 24
24,25,26=multiple of 24
second condition
1,2,3=6, not a multiple of 24
23,24,25=multiple of 24
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Senior Manager
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E
1. say B is 6; c=1; so 1 * 2 * 3 = 6
it is a multiple of 3 but not of 24
say B is 24; c=2; 2 * 3 * 4 = 24
it is a multiple of 3 and of 24
so 1 is not sufficient
2. c = 1; B = 6 is not a multiple of 24
c=3; B = 60; not a ...
....
together:still no
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Senior Manager
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Damn stoolfi you beat me here too ...
look at the time difference in postings!!
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Director
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You wisely chose your numbers as well, young Pitts.
Now quit stalking me!!!
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Director
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The official answer is A, and it has been proved wrong by you all !
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close
