|
Author |
Message |
|
TAGS:
|
|
|
Intern
Joined: 08 Sep 2005
Posts: 48
Followers: 0
Kudos [?]:
0
[0], given: 0
|
Of the science books in a certain supply room, 50 are on [#permalink]
 09 Apr 2006, 07:37
Question Stats:
0% (00:00) correct
 0% (00:00) wrong based on 0 sessions
Of the science books in a certain supply room, 50 are on botany, 65 are on zoology, 90 are on physics, 50 are on geology, and 110 are on chemistry. If science books are removed randomly from the supply room, how many must be removed to ensure that 80 of the books removed are on the same science?
A) 81
B) 159
C) 166
D) 285
E) 324
|
|
|
|
|
|
|
Intern
Joined: 01 Feb 2006
Posts: 36
Followers: 0
Kudos [?]:
3
[0], given: 0
|
E.
Essentially, in this type of problem, you are trying to delay getting 80 books as much as possible.
First I would add up all the books that can't give us 80 (botony, zoology, and geology).
Then I would alternate between chemistry and physics until I reach 79 of each.
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Similar topics |
Author |
Replies |
Last post |
|
Similar
Topics:
|
 |
|
|
Of the science books in a certain supply room, 50 are on
|
Vicky |
1 |
30 Sep 2003, 21:42 |
|
|
|
|
Of the science books in a certain supply room, 50 are on
|
lan583 |
3 |
12 Sep 2006, 12:24 |
|
|
|
|
Of the science books in a certain supply room, 50 are on
|
sunilgupta |
5 |
29 Jul 2007, 01:46 |
|
|
|
|
Of the science books in a certain supply room, 50 are on
|
GMAT TIGER |
3 |
04 Nov 2007, 13:47 |
|
|
|
|
Of the science books in a certain supply room, 50 are on
|
jimmylow |
5 |
26 Apr 2008, 09:14 |
|
|
|
|
|
|
close
