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36% (00:25) correct
63% (00:51) wrong based on 19 sessions

\(\frac{1}{2} < r < 1\)

Quantity A

Quantity B

\(2r\)

\(\frac{1}{r}\)

A. Quantity A is greater. B. Quantity B is greater. C. The two quantities are equal D. The relationship cannot be determined from the information given.

let us plug in two numbers such that 1st is close to 1/2 and another is close to 1 for r=0.6 2r= 2*0.6= 1.2 while 1/r = 1/0.6 =1.67 A<B for r=0.9 2r=2*0.9=1.8 while 1/r= 1/0.9=1.11 A>B (D)
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