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by abhinav85 » Mon Jun 01, 2009 7:53 pm
If m,r,x & y are positive ,is the ratio of m to r equal to the ratio of x to y?

A) The ratio of m to y is equal to the ratio of x to r.

B) The ratio of m + n to r + y is equal to the ratio of x to y.


B
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Source: — Data Sufficiency |
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B?

by brick2009 » Mon Jun 01, 2009 9:18 pm
How can B be the answer?

Where did u get "n"....is your question incomplete..or did i miss something?

clarify plz..
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by abhinav85 » Tue Jun 02, 2009 4:55 am
Ya its M + x instead of M + n
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by shargaur » Mon Aug 03, 2009 6:21 pm
If m,r,x & y are positive ,is the ratio of m to r equal to the ratio of x to y?

A) The ratio of m to y is equal to the ratio of x to r.

B) The ratio of m + n to r + y is equal to the ratio of x to y.

let question be m:r=x:y
or my=rx

st1: m:y=x:r
=> mr=yx insufficient
st2: m+x:r+y = x:y
cross multiply my+xy = rx+xy
because x& y is postive so is xy
my=rx
st2 is sufficeint

Hence B. Did i missed somewhere
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