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R.K Just gettin' started!
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help me Mon May 28, 2012 9:07 am
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• Lap #[LAPCOUNT] ([LAPTIME])
If a and b are positive integers, then what is the ratio of a/b to its reciprocal?

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Anurag@Gurome GMAT Instructor
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Mon May 28, 2012 9:09 am
R.K wrote:
If a and b are positive integers, then what is the ratio of a/b to its reciprocal?
Reciprocal of a/b = 1/(a/b) = b/a

Hence, ratio of a/b to b/a = (a/b)/(b/a) = (a*a)/(b*b) = a²/b²

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Last edited by Anurag@Gurome on Mon May 28, 2012 10:19 am; edited 1 time in total

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goelmaya Just gettin' started!
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Mon May 28, 2012 10:16 am
Anurag@Gurome wrote:
R.K wrote:
If a and b are positive integers, then what is the ratio of a/b to its reciprocal?
Ratio of any non-zero number to its reciprocal is always 1.

Here, a/b is a non-zero quantity.
Reciprocal of a/b = 1/(a/b) = b/a

Hence, ratio of a/b to b/a = (a/b)/(b/a) = 1
how is it 1?

(a/b)/(b/a) = a^2/b,isn't it?

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Anurag@Gurome GMAT Instructor
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Mon May 28, 2012 10:21 am

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Anurag Mairal, Ph.D., MBA
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R.K Just gettin' started!
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Mon May 28, 2012 11:48 pm
but in my book, the answer is a^2/b^2
how is it possible????/

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Anurag@Gurome GMAT Instructor
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Mon May 28, 2012 11:58 pm
R.K wrote:
but in my book, the answer is a^2/b^2
how is it possible????/
See my first post.

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