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skilled or semi-skilled

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Intern
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skilled or semi-skilled [#permalink] New post 22 Nov 2004, 12:02
This one is from Kaplan:

It is not difficult question but I am looking for ideas how to gamble correctly, if you dont have time to do the calculation , what will be the best way to approach it in order to answer it.

The 84 workers at certain plan are either skilled or semi-skilled :?:
semi skilled workers earn 12,000$ per year
skilled worker earn 18,000$ per year
each of the worker is given productivity bonus of 3% of the annual salary
the total amount of the bonus that was awarder is 32,760$
what precent of the worker in the plan are skilled

8%
6 2/3%
20%
25%
33 1/3%
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Director
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 [#permalink] New post 23 Nov 2004, 08:40
I do not figure out any easy way for this one except solving it basically :

84 = A+B
32760 = 3%.(12000.A+18000.B)
Manager
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 [#permalink] New post 23 Nov 2004, 09:39
I agree. You'd need to go all the way
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Re: skilled or semi-skilled [#permalink] New post 23 Nov 2004, 23:35
Is the correct answer 16 2/3%???
Senior Manager
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A thought? [#permalink] New post 24 Nov 2004, 11:30
Is it possible to eliminate whole numbers straight away? This leaves us with two options: 6 2/3% and 33 1/3%. Since the latter is way off the mark considering the figures at a first glance, I'd eliminate it as well.

This leaves us with only one option.
A thought?   [#permalink] 24 Nov 2004, 11:30
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