-
sleepingfool
- Newbie | Next Rank: 10 Posts
- Posts: 2
- Joined: Sun Oct 14, 2007 7:14 am
Some questions in 1000 PS DS
2. Is x < y?
(1) z < y
(2) z <x> E but E is wrong.
Key: A
How can A???
****
24. 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.
We can find two cases in which b is a multiple of 24, and b is not a multiple of 24. So can not conclude => E but E is wrong.
Key: A
How can A???
2. Is x < y?
(1) z < y
(2) z <x> E but E is wrong.
Key: A
How can A???
****
24. 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.
We can find two cases in which b is a multiple of 24, and b is not a multiple of 24. So can not conclude => E but E is wrong.
Key: A
How can A???
