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PS: Ratio + Movies

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Senior Manager
Joined: 02 Oct 2005
Posts: 303
Followers: 1

Kudos [?]: 7 [0], given: 0

PS: Ratio + Movies [#permalink]  19 Nov 2005, 16:54
00:00

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 0 sessions
Please see the attachment for question.

Choices:

a) 3:16
b) 1:2
c) 2:3
d) 9:8
e) 3:1

Any short-cuts or procedural way to solve this problem, other than trying all the choices?
Attachments

PR3_Q27.JPG [ 14.24 KiB | Viewed 662 times ]

VP
Joined: 06 Jun 2004
Posts: 1059
Location: CA
Followers: 2

Kudos [?]: 46 [0], given: 0

Re: PS: Ratio + Movies [#permalink]  19 Nov 2005, 18:07
sudhagar wrote:
Please see the attachment for question.

Choices:

a) 3:16
b) 1:2
c) 2:3
d) 9:8
e) 3:1

Any short-cuts or procedural way to solve this problem, other than trying all the choices?

The equation could be setup like this....

2n + 1.5r = 30

In order for r to be an integer, it has to be an even number. (a), (b), (d) are all possible choices but the question is asking for EXCEPT.

Choices left are (c) and (e) and plugging it in, C is the only one that doesn't work.
Senior Manager
Joined: 02 Oct 2005
Posts: 303
Followers: 1

Kudos [?]: 7 [0], given: 0

If we ignore the even ones and suppose the ratio 2:3 is expressed as 4:6, then there is a possibility that we would miss that right?

Pls lmk if I am over looking something here
VP
Joined: 06 Jun 2004
Posts: 1059
Location: CA
Followers: 2

Kudos [?]: 46 [0], given: 0

If we reduce all the ratios to the simplest form, then we shouldn't miss it.

What is the OA?
Senior Manager
Joined: 02 Oct 2005
Posts: 303
Followers: 1

Kudos [?]: 7 [0], given: 0

Thats good point.

Btw, OA is C
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