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same equal rates

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same equal rates

by sanju09 » Fri Jun 18, 2010 1:39 am
If w workers, working at equal rates, can produce x toys in n days, how many days it takes c workers, working at same equal rates, to produce y toys?
(A) y x c/w
(B) y w c/ (w n)
(C) y w/ (w n c)
(D) y w n/x
(E) y w n/ (x c)
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by selango » Fri Jun 18, 2010 3:27 am
w*n/x=c*d/y

d=w*n*y/c*x

Option E
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by kvcpk » Fri Jun 18, 2010 3:36 am
sanju09 wrote:If w workers, working at equal rates, can produce x toys in n days, how many days it takes c workers, working at same equal rates, to produce y toys?
(A) y x c/w
(B) y w c/ (w n)
(C) y w/ (w n c)
(D) y w n/x
(E) y w n/ (x c)
y,w,x,c,n are all variables.. there is no relation between them to cancel out..
So choose an answer that has all 5 of them.. only E

Hope this helps!! ;)
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by sumanr84 » Fri Jun 18, 2010 3:49 am
kvcpk wrote: y,w,x,c,n are all variables.. there is no relation between them to cancel out..
So choose an answer that has all 5 of them.. only E

Hope this helps!! ;)
Wow !! Really wonderful solution I must say ( without any math involved)..:-)
If this clicks when the clock is ticking then definitely one will have an edge..
I am on a break !!
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by kvcpk » Fri Jun 18, 2010 3:55 am
sumanr84 wrote:
kvcpk wrote: y,w,x,c,n are all variables.. there is no relation between them to cancel out..
So choose an answer that has all 5 of them.. only E

Hope this helps!! ;)
Wow !! Really wonderful solution I must say ( without any math involved)..:-)
If this clicks when the clock is ticking then definitely one will have an edge..
Glad that it was helpful.. But not sure if it would strike when needed.. :)
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