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If f(x,y) = (10x)/(x+2y) +(20y)/(2x+y) where 0<x<y, which of the follo 27 Feb 2017, 00:04
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95% (hard)

Question Stats:

35% (02:35) correct 65% (02:39) wrong based on 20 sessions

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If \(f(x,y) = \frac{10x}{{x+2y}} +\frac{20}{{2x+y}}\), where \(0<x<y\), which of the following could be the value of \(f(x,y)\)?

A. 9          
B. 10         
C. 19          
D. 20       
E. 23



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If f(x,y) = (10x)/(x+2y) +(20y)/(2x+y) where 0<x<y, which of the follo 27 Feb 2017, 01:12
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AustinKL
If \(f(x,y) = \frac{10x}{{x+2y}} +\frac{20}{{2x+y}}\), where \(0<x<y\), which of the following could be the value of \(f(x,y)\)?

A. 9          
B. 10         
C. 19          
D. 20       
E. 23

This is a copy of the following question: https://gmatclub.com/forum/if-x-y-and-k ... 28231.html
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If f(x,y) = (10x)/(x+2y) +(20y)/(2x+y) where 0<x<y, which of the follo 04 Mar 2017, 21:39
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Bunuel
AustinKL
If \(f(x,y) = \frac{10x}{{x+2y}} +\frac{20}{{2x+y}}\), where \(0<x<y\), which of the following could be the value of \(f(x,y)\)?

A. 9          
B. 10         
C. 19          
D. 20       
E. 23

This is a copy of the following question: https://gmatclub.com/forum/if-x-y-and-k ... 28231.html

Denominators are not the same in this case and many have selected the wrong choice including myself. Could you please solve this one for us. I believe many tried to just fill in values and got it wrong just as I did by assuming x=1 and y=2
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If f(x,y) = (10x)/(x+2y) +(20y)/(2x+y) where 0<x<y, which of the follo 20 Mar 2017, 02:28
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There's no 20y in the question.
error.



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