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If X is the length of the radius of a circle, what is X? 1. The radius [#permalink]
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16 Apr 2017, 13:04
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Source: McGraw Hill GMAT If X is the length of the radius of a circle, what is X? 1. The radius is onehalf the length of the diameter. 2. The ratio of the circumference to the diameter is π.
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Re: If X is the length of the radius of a circle, what is X? 1. The radius [#permalink]
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08 Jun 2017, 11:13
I got a tad bit confused. First, the question is asking for a value for X. The question stem provides the same information in the two statements. They are both facts diameter by definition is 2*radius and the ratio of diameter to the circumference is 2πr: D(=2π). This does not give us a value for X, but where my confusion came in was the idea that a ratio would give us "a value" and that is not the case. I chose E after going back and forth over the meaning of "value" and the implication of/what is a "ratio" good question on foundational stuff.
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Re: If X is the length of the radius of a circle, what is X? 1. The radius [#permalink]
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27 Jul 2017, 21:57
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The answer is a straight E because it doesn't let us the value of the X because just by the ratio you cannot determine the particular value .

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Re: If X is the length of the radius of a circle, what is X? 1. The radius [#permalink]
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27 Jul 2017, 22:20
longhaul123 wrote: just by the ratio you cannot determine the particular value .  yes thats something i totally overlooked when thinking out this question. thanks for pointing out for others as well.
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Re: If X is the length of the radius of a circle, what is X? 1. The radius
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