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Re: Ratio

by aroon7 » Fri Jan 23, 2009 6:01 pm
beater wrote:Please explain
let X and Y be the rates of robots x and y

1) says that (X/Z) < (Y/Z)
ie X<Y insuff because it doesnt say anything about Z

2) says Z > Y insuff because it doesnt say anything about X

combining both,
X<Y<Z

so C
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