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# M+N) / MN > 1 What happens to the inequality sign when we

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CEO
Joined: 21 Jan 2007
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M+N) / MN > 1 What happens to the inequality sign when we [#permalink]  15 Nov 2007, 06:46
(M+N) / MN > 1

What happens to the inequality sign when we invert the left side like so:

MN / (M+N) ? 1

and why does it happen?
Director
Joined: 13 Dec 2006
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Location: Indonesia
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[#permalink]  15 Nov 2007, 06:51
inequality sign will reverse because in case one the denominator is lesser than numerator. But if denominator will be come more than numerator than the resultant will be less than 1

Amar
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Re: Concept: Inequalities and Inverses [#permalink]  15 Nov 2007, 07:36
bmwhype2 wrote:
(M+N) / MN > 1

What happens to the inequality sign when we invert the left side like so:

MN / (M+N) ? 1

and why does it happen?

Exactly as explained by Amar.

For Eg: 10 / 5 = 2 which is > 1 but 5/10 = 0.5 which is < 1.
Re: Concept: Inequalities and Inverses   [#permalink] 15 Nov 2007, 07:36
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# M+N) / MN > 1 What happens to the inequality sign when we

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