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Jameschan168
- Senior | Next Rank: 100 Posts
- Posts: 37
- Joined: Sun Aug 26, 2007 3:45 pm
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Hi all,
Please let me know if there's a logic error in my analysis
If b is the product of three consecutive positive integers C, C+1, C+2, is b a multiple of 24?
(1) b is a multiple of 3
(2) c is odd
First of all, if b is a multiple of 24, b must have factors of 3, 2, 2 and 2
Stmt 1 should be in sufficient since we don't know whether b is also a multiple of 8, and also we already know that b is a multiple of 3 since b is a product of 3 consecutive integers.
Stmt 2 is insuff because we C could be anything. For example,
C = 25, so b is 25 * 26 * 27, and b is not a multiple of 24.
1+2 still insuff based on the example above in stmt 2.
Please let me know if there is an error in the answer choice, which is A.
Please let me know if there's a logic error in my analysis
If b is the product of three consecutive positive integers C, C+1, C+2, is b a multiple of 24?
(1) b is a multiple of 3
(2) c is odd
First of all, if b is a multiple of 24, b must have factors of 3, 2, 2 and 2
Stmt 1 should be in sufficient since we don't know whether b is also a multiple of 8, and also we already know that b is a multiple of 3 since b is a product of 3 consecutive integers.
Stmt 2 is insuff because we C could be anything. For example,
C = 25, so b is 25 * 26 * 27, and b is not a multiple of 24.
1+2 still insuff based on the example above in stmt 2.
Please let me know if there is an error in the answer choice, which is A.
.. i remember there was something wrong with the last question you posted too ..
