Questions about the world of GMAT Math from other sources and general math related questions.
mridul12
 
 

[deleted - please post the source of your questions!]

by mridul12 Fri Aug 31, 2007 5:58 pm

[deleted - did not post source of question - jonathan]
abhinav
 
 

by abhinav Fri Aug 31, 2007 8:00 pm

is the answer (D) ?
givemeanid
 
 

by givemeanid Fri Aug 31, 2007 8:09 pm

B for me
abhinav
 
 

by abhinav Fri Aug 31, 2007 8:12 pm

[deleted - original question was not listed with source - jonathan]
mridul12
 
 

OA is D

by mridul12 Fri Aug 31, 2007 10:26 pm

OA is D. When i looked at Statement 1), I right away decided that you can figure out the time since it you have just one rate . Just thought to share with you folks not to make this mistake.
Rustic Myth
 
 

Am i missing something

by Rustic Myth Sun Aug 31, 2008 9:24 pm

[deleted - original question was not listed with source - jonathan]
Charger
 
 

by Charger Mon Sep 01, 2008 11:46 am

The second statement states that "Anne’s average rate for each lap was less than Kim's". Hence the time taken by Anne must be greater than Kim's. Kim took 250 seconds to complete the 3 laps. So Anne's time is >250 second. Hence B is sufficient.
Paul
 
 

by Paul Tue Sep 02, 2008 10:39 am

In order to qualify for the state track meet, Anne must run 3 laps around a 400-meter track in 240 seconds or less. Did Anne qualify for the state meet?

(1) Anne ran the first lap at an average rate of 1.6 meters per second.

I don't know how good is the source of this problem but the answer can't be D, since the questions asks about 3 laps.
Statement (1) gives you Anne's rate for the first lap but gives us nothing about the rest of the laps (after the first lap she could've gotten a wind in her back and increase her speed to make it in qualifying time).

My answer is B, Anne won't qualify.
esledge
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Please post question source

by esledge Mon Oct 13, 2008 12:59 pm

Please cite the source (author) of this problem. We cannot reply unless a source is cited (and, if no source is cited, we will have to delete the post!). Thanks.

Please also make sure to read and follow the forum guidelines before posting. The subject heading should be the first 5-8 words of the problem.
Emily Sledge
Instructor
ManhattanGMAT
SAN
 
 

ANSWER

by SAN Mon Oct 13, 2008 11:56 pm

Answer is A.

From Statement 2 -


Kim run first 1, 2 and 3 rd lap in 50, 100 and 100 secs respectively with average of ~ 83.33

But Ann's average is less than 83.33 does not mean it is less than 80 to qualify for race (or 240 total time)

Dont post foolish problem those take less than 1 minute to solve but take 5 minutes to post.
karansingh1985
 
 

by karansingh1985 Thu Oct 16, 2008 3:08 pm

I would say the answer is D:

The first statement tell you that Ann takes more than 240 on the first lap itself. So, she doesn't qualify.

The second statement tells you that the other person takes 250 and Anne's average rate on each lap is less. Therefore Anne takes longer. So, she doesn't qualify.

Therefore, D.
JonathanSchneider
ManhattanGMAT Staff
 
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Joined: Sun Oct 26, 2008 3:40 pm
 

by JonathanSchneider Thu Nov 13, 2008 12:39 am

PLEASE Post the source!