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If $936 are divided between worker A and worker B in the rat

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If $936 are divided between worker A and worker B in the rat [#permalink] New post 17 Feb 2013, 17:49
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Difficulty:

  25% (low)

Question Stats:

79% (02:36) correct 20% (01:56) wrong based on 54 sessions
If $936 are divided between worker A and worker B in the ratio 5: 7,what is the share that worker B will get?

A. 58.12%
B. 58.33%
C. 58.55%
D. 58.76%
E. 58.97%

[Reveal] Spoiler: Resolution
The ratio a:b is 5:7, and therefore the share of B will be b/(a+b) or 7/(5+7). The solutions talk about percentages, so there is no need to multiply by the amount - $936 -, but this could be a different or potential question. Remember always that the share of a is a/(a+b) and the share of b is b/(a+b).
[Reveal] Spoiler: OA

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Last edited by Bunuel on 18 Feb 2013, 03:02, edited 1 time in total.
Renamed the topic and edited the question.
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Joined: 15 Jan 2013
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Concentration: Finance, Operations
GPA: 4
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Kudos [?]: 15 [0], given: 6

Re: If $936 are divided between worker A and worker B in the rat [#permalink] New post 18 Feb 2013, 08:25
johnwesley wrote:
If $936 are divided between worker A and worker B in the ratio 5: 7,what is the share that worker B will get?

A. 58.12%
B. 58.33%
C. 58.55%
D. 58.76%
E. 58.97%

[Reveal] Spoiler: Resolution
The ratio a:b is 5:7, and therefore the share of B will be b/(a+b) or 7/(5+7). The solutions talk about percentages, so there is no need to multiply by the amount - $936 -, but this could be a different or potential question. Remember always that the share of a is a/(a+b) and the share of b is b/(a+b).


B's share= 7/(5+7) of the total=7/12 of the total
B's percentage share= 7/12*100 = 58.33%
Re: If $936 are divided between worker A and worker B in the rat   [#permalink] 18 Feb 2013, 08:25
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