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# Mathematicians joke that a coffee mug is indistinguishable

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Study Buddy Forum Moderator
Joined: 04 Sep 2016
Posts: 440

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WE: Engineering (Other)
Mathematicians joke that a coffee mug is indistinguishable [#permalink]

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06 Dec 2017, 22:39
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Difficulty:

15% (low)

Question Stats:

80% (00:35) correct 20% (01:11) wrong based on 40 sessions

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Mathematicians joke that a coffee mug is indistinguishable from a bagel, referring to the fact that these two items are topologically equivalent.

a. joke that a coffee mug is indistinguishable from a bagel, referring to the fact that these two items are topologically equivalent
b. referring to their topological equivalence, joke that a coffee mug is indistinguishable from a bagel.
c. have a joke according to which a coffee mug is indistinguishable for its topological equivalence to a bagel.
d. who are referring to their topological equivalence joke that a coffee mug is indistinguishable from a bagel.
e. joke that a coffee mug is indistinguishable from a bagel, which refers to the fact that these two items are topologically equivalent
[Reveal] Spoiler: OA

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Re: Mathematicians joke that a coffee mug is indistinguishable [#permalink]

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07 Dec 2017, 02:14
Mathematicians joke that a coffee mug is indistinguishable from a bagel, referring to the fact that these two items are topologically equivalent.

There's nothing wrong with the original sentence. We can also eliminate the other options as follows.

a. joke that a coffee mug is indistinguishable from a bagel, referring to the fact that these two items are topologically equivalent Correct Option
b. referring to their topological equivalence, joke that a coffee mug is indistinguishable from a bagel. The reference of the pronoun their is not clear. 'Their' can refer to mathematicians or to coffee mug and bagel
c. have a joke according to which a coffee mug is indistinguishable for its topological equivalence to a bagel. Indistinguishable should always be followed by 'from'. Hence, usage of indistinguishable is incorrect.
d. who are referring to their topological equivalence joke that a coffee mug is indistinguishable from a bagel. The pronoun their refers to mathematicians and not to coffee mug and bagel
e. joke that a coffee mug is indistinguishable from a bagel, which refers to the fact that these two items are topologically equivalent Usage of which is incorrect as here, which is referring to 'bagel'
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Re: Mathematicians joke that a coffee mug is indistinguishable   [#permalink] 07 Dec 2017, 02:14
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