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A certain tests consists 8 sections with 25 questions, numbered from

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Manager
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Status: Current MBA Student
Joined: 19 Nov 2009
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Concentration: Finance, General Management
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A certain tests consists 8 sections with 25 questions, numbered from [#permalink]

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New post 11 Mar 2011, 11:31
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A
B
C
D
E

Difficulty:

  35% (medium)

Question Stats:

67% (01:52) correct 33% (00:24) wrong based on 12 sessions

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A certain tests consists 8 sections with 25 questions, numbered from 1 to 25, in each section. If a student answered all of the even-numbered questions correctly and 3/4 of the odd-numbered questions correctly, what was the total number of questions he answered correctly?

a. 150
b. 172
c. 174
d. 175
e. 176
[Reveal] Spoiler: OA
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Re: A certain tests consists 8 sections with 25 questions, numbered from [#permalink]

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New post 11 Mar 2011, 13:17
tonebeeze wrote:
A certain tests consists 8 sections with 25 questions, numbered from 1 to 25, in each section. If a student answered all of the even-numbered questions correctly and 3/4 of the odd-numbered questions correctly, what was the total number of questions he answered correctly?

a. 150
b. 172
c. 174
d. 175
e. 176

OA = C


Each set has 12 even and 13 odd numbered questions leading to total 96 even and 104 odd questions. He answered \(96 + 3/4*104 = 96+78 = 174\) questions correctly
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Re: A certain tests consists 8 sections with 25 questions, numbered from [#permalink]

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New post 11 Mar 2011, 14:44
I agree with the answer. 96+74=174. Straight forward! Anything confusing?
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Re: A certain tests consists 8 sections with 25 questions, numbered from [#permalink]

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New post 12 Mar 2011, 02:57
Odd -> 13 * 8 = 104

So 3/4 = 3 * 26 = 78

All even = 8 * 12 = 96

Total = 174

So answer is C.
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Re: A certain tests consists 8 sections with 25 questions, numbered from   [#permalink] 12 Mar 2011, 02:57
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