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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%