City Y last year

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City Y last year

by Vemuri » Tue Mar 17, 2009 6:40 pm
In City Y last year, what was the ratio of the number of commuters who rode buses to the number of commuters who rode trains?

1. In City Y last year, 50,000 commuters rode trains and 48,000 commuters rode buses.
2. In City Y last year, if the number of commuters who rode trains had been 20% greater, the number of commuters who rode trains would have been 125% of the number of commuters who rode buses.

The OA is A. Statement 1 clearly provides the missing information to answer the question. I thought statement 2 was sufficient as well. Let me explain what I did.

If the # of commuters by train were x & of commuters by bus were y, then statement 2 is saying,

1.2x = 1.25y

from the above equation, we can get the ratio of commuters by bus to commuters by train.

y/x = 1.2/1.25 --> Sufficient.

Isn't the answer supposed to be D?

Am I doing something wrong?
Source: — Data Sufficiency |

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by cramya » Tue Mar 17, 2009 7:07 pm
Unless I am missing something which is possible I would go with D too. I must be missing a trick in the wording if its really A

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Re: City Y last year

by serenity09 » Tue Mar 17, 2009 7:37 pm
Vemuri wrote:In City Y last year, what was the ratio of the number of
If the # of commuters by train were x & of commuters by bus were y, then statement 2 is saying,

1.2x = 1.25y

from the above equation, we can get the ratio of commuters by bus to commuters by train.

y/x = 1.2/1.25 --> Sufficient.

Isn't the answer supposed to be D?

Am I doing something wrong?
----------------------------------------------------------------------------------

This looks right to me as well. What is the source of this question??

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Re: City Y last year

by Vemuri » Wed Mar 18, 2009 6:42 pm
Source is Princeton Review GMAT guide. Its a classroom question with no answer. I had it marked as A (I guess from what the instructor explained). Maybe it was my mistake marking it.

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Re: City Y last year

by shibal » Wed Mar 18, 2009 7:38 pm
Vemuri wrote:In City Y last year, what was the ratio of the number of commuters who rode buses to the number of commuters who rode trains?

1. In City Y last year, 50,000 commuters rode trains and 48,000 commuters rode buses.
2. In City Y last year, if the number of commuters who rode trains had been 20% greater, the number of commuters who rode trains would have been 125% of the number of commuters who rode buses.

The OA is A. Statement 1 clearly provides the missing information to answer the question. I thought statement 2 was sufficient as well. Let me explain what I did.

If the # of commuters by train were x & of commuters by bus were y, then statement 2 is saying,

1.2x = 1.25y

from the above equation, we can get the ratio of commuters by bus to commuters by train.

y/x = 1.2/1.25 --> Sufficient.

Isn't the answer supposed to be D?

Am I doing something wrong?
C all the way =P.... however 125% should be 2.25 not 1.25...