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ps: Chicken

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Senior Manager
Senior Manager
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ps: Chicken [#permalink] New post 20 May 2005, 15:37
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Senior Manager
Senior Manager
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Joined: 02 Feb 2004
Posts: 345
Followers: 1

Kudos [?]: 10 [0], given: 0

GMAT Tests User
 [#permalink] New post 20 May 2005, 16:49
gmat2me2 wrote:
Getting 300


yes 300 is the answer. can you pls show your shortcut?
Director
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 [#permalink] New post 20 May 2005, 17:05
Let x be the chicken and y be the number of days

This could be solved by calculating the chicken-days (cos it is a constant if we closely observe)

(x-75)(y+20) = x*y; (when 75 chicken are sold)

(x+100)(y-15) = x*y;(when 100 chicken are bought)

Since the above 2 equations are same

we get x=5y;

Solve it you get y=60 and x=300
Senior Manager
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 [#permalink] New post 20 May 2005, 23:41
gmat2me2 wrote:
Let x be the chicken and y be the number of days

This could be solved by calculating the chicken-days (cos it is a constant if we closely observe)

(x-75)(y+20) = x*y; (when 75 chicken are sold)

(x+100)(y-15) = x*y;(when 100 chicken are bought)

Since the above 2 equations are same

we get x=5y;

Solve it you get y=60 and x=300



Got 300 too, but couldn't see any short cuts here.

HTMG
  [#permalink] 20 May 2005, 23:41
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