What does P equal

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Tega1984: Senior | Next Rank: 100 Posts; Posts: 51; Joined: Wed Oct 13, 2010 4:47 am; Thanked: 2 times; GMAT Score:560

by Tega1984 » Tue May 31, 2011 6:42 am

I am a bit confused about something here. 1/2=P/n and we're looking for P. My approach is to cross multiply and P would equal n/2.However,the answer explanation states that P equals to 1/2n. Can anyone tell me how is it possible?

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Source: Beat The GMAT — Problem Solving | Tue May 31, 2011 6:42 am

cans: Legendary Member; Posts: 1309; Joined: Mon Apr 04, 2011 5:34 amFollowed by: 123 members; Location: India; Thanked: 310 times; GMAT Score:750

by cans » Tue May 31, 2011 6:47 am

well p should be equal to n/2
can you post the exact question and the explanation?

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Anurag@Gurome: GMAT Instructor; Posts: 3835; Joined: Fri Apr 02, 2010 10:00 pmFollowed by: 523 members; Location: Milpitas, CA; Thanked: 1854 times; GMAT Score:770

by Anurag@Gurome » Tue May 31, 2011 6:48 am

Tega1984 wrote:I am a bit confused about something here. 1/2=P/n and we're looking for P. My approach is to cross multiply and P would equal n/2.However,the answer explanation states that P equals to 1/2n. Can anyone tell me how is it possible?

Your approach is correct, P = n/2. It might be a typo.

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Tega1984: Senior | Next Rank: 100 Posts; Posts: 51; Joined: Wed Oct 13, 2010 4:47 am; Thanked: 2 times; GMAT Score:560

by Tega1984 » Tue May 31, 2011 6:55 am

I'm sorry it will take a long time if I rewrite the question along with it's explanation here. I am not able to copy-paste it here unfortunately. But it really seems that they made a mistake. Thanks for the response

cans wrote:well p should be equal to n/2
can you post the exact question and the explanation?

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Tega1984: Senior | Next Rank: 100 Posts; Posts: 51; Joined: Wed Oct 13, 2010 4:47 am; Thanked: 2 times; GMAT Score:560

by Tega1984 » Tue May 31, 2011 6:55 am

Yeah it seems like a typo to me too. Thanks

Anurag@Gurome wrote:
Tega1984 wrote:I am a bit confused about something here. 1/2=P/n and we're looking for P. My approach is to cross multiply and P would equal n/2.However,the answer explanation states that P equals to 1/2n. Can anyone tell me how is it possible?
Your approach is correct, P = n/2. It might be a typo.

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