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Each student in a room is a sophomore, a junior, or a senior. Each of

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Each student in a room is a sophomore, a junior, or a senior. Each of  [#permalink]

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New post 18 Nov 2018, 09:38
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A
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C
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E

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Question Stats:

93% (00:45) correct 7% (01:01) wrong based on 53 sessions

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Each student in a room is a sophomore, a junior, or a senior. Each of these students has exactly one of the categorizations of sophomore, junior, and senior. How many students in the room are seniors?

a) There are a total of 36 students in the room, of which 1/3 are sophomores.

b) There are 14 juniors in the room.

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Re: Each student in a room is a sophomore, a junior, or a senior. Each of  [#permalink]

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New post 25 Dec 2018, 19:45
Harshgmat wrote:
Each student in a room is a sophomore, a junior, or a senior. Each of these students has exactly one of the categorizations of sophomore, junior, and senior. How many students in the room are seniors?

a) There are a total of 36 students in the room, of which 1/3 are sophomores.

b) There are 14 juniors in the room.


Sophmore = S
Junior = J
Senior = Sr

Statement 1: 36 students in the room, 1/3 are sophomores. This means there are 12 sophomores in the room. We know nothing about juniors so INSUFF

Statement 2: We know nothing about the sophomores in the room. INSUFF

Combined: 14 + 12 + Sr = 36. We can solve for Sr.

Correct answer C
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Re: Each student in a room is a sophomore, a junior, or a senior. Each of   [#permalink] 25 Dec 2018, 19:45
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Each student in a room is a sophomore, a junior, or a senior. Each of

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