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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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78% (00:41) correct 22% (00:33) wrong based on 89 sessions
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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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Schools: HBS '20, Stanford '20, Wharton '20, CBS '20, Ross '20, Haas '20, Stern '20, Yale '20, Duke '20, Anderson '20, Darden '20, Johnson '20, KenanFlagler '20, Marshall '20, McDonough '20, Goizueta '20, Merage '20, UC Davis '20, UCSD '20
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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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27 Jul 2017, 22:20






