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# The number of points a student gets on an exam is directly

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Manager
Joined: 25 Dec 2010
Posts: 81

Kudos [?]: 108 [0], given: 2

The number of points a student gets on an exam is directly [#permalink]

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22 Aug 2011, 14:43
00:00

Difficulty:

55% (hard)

Question Stats:

50% (00:14) correct 50% (03:35) wrong based on 8 sessions

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The number of points a student gets on an exam is directly proportional to the number of multiple-choice questions he or she answers correctly, and also to the square of the number of essay questions he or she answers correctly. What is the score of a student who answers 20 multiple-choice questions correctly and 6 essay questions correctly?
1. A student who answers 15 multiple-choice questions correctly and 2 essay questions correctly scores 24 points higher than a student who answers 12 multiple-choice questions correctly and 2 essay questions correctly.
2. A student who answers 15 multiple-choice questions correctly and 3 essay questions correctly scores 20 points higher than a student who answers 5 multiple-choice questions correctly and 5 essay questions correctly.
[Reveal] Spoiler: OA

Last edited by shashankp27 on 22 Aug 2011, 16:37, edited 1 time in total.

Kudos [?]: 108 [0], given: 2

Math Forum Moderator
Joined: 20 Dec 2010
Posts: 1964

Kudos [?]: 2054 [0], given: 376

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22 Aug 2011, 15:58
shashankp27 wrote:
The number of points a student gets on an exam is directly proportional to the number of multiple-choice questions he or she answers correctly, and also to the square of the number of essay questions he or she answers correctly. What is the score of a student who answers multiple-choice questions correctly and essay questions correctly?
1. A student who answers multiple-choice questions correctly and essay questions correctly scores points higher than a student who answers multiple-choice questions correctly and essay questions correctly.
2. A student who answers multiple-choice questions correctly and essay questions correctly scores points higher than a student who answers multiple-choice questions correctly and essay questions correctly.

Are you sure this is correct? I feel as if I am reading the same thing again and again. Let me better sign off.
_________________

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Intern
Joined: 05 Mar 2011
Posts: 7

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22 Aug 2011, 16:37
I guess some mistake in the question. Same sentence repeats.

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Manager
Joined: 25 Dec 2010
Posts: 81

Kudos [?]: 108 [0], given: 2

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22 Aug 2011, 16:42
Edited the post, the numbers just vanished when i copied the text from the source.

Kudos [?]: 108 [0], given: 2

Re: Propotional   [#permalink] 22 Aug 2011, 16:42
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