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Ratio DS

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Ratio DS

by okigbo » Wed Oct 21, 2009 11:51 pm
20) If m, r, x & y are positive, is the ratio of m to r equal to the ratio of x to y?
a. Ratio of m to y is equal to ratio of x to r
b. Ratio of m + x to r + y equals ratio of x to y
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by xcusemeplz2009 » Thu Oct 22, 2009 2:29 am
IMO B
It does not matter how many times you get knocked down , but how many times you get up
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Re: Ratio DS

by crackgmat007 » Fri Oct 23, 2009 11:43 am
okigbo wrote:20) If m, r, x & y are positive, is the ratio of m to r equal to the ratio of x to y?
a. Ratio of m to y is equal to ratio of x to r
b. Ratio of m + x to r + y equals ratio of x to y
Rephrase

m/r = x/y, which is nothing but, my=xr.

1. States that mr=xy, doesnt match our rephrase
2. States that (m+x)/(r+y) = x/y. Solving we get, my + xy = xr + xy. Cancelling xy on both sides, we get our rephrase.

Hence B.

HTH
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