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Re: Forty percent of the residents of Town T are men, and 15 percent of th [#permalink]
Bismarck wrote:
Forty percent of the residents of Town T are men, and 15 percent of those men are over the age of 60. If one resident of the town is to be selected at random,
what is the probability that the resident selected is a man over the age of 60?

Favorable outcome = 0.40 * 0.15 * n = 0.06 * n
Possible outcome = n

Probability = Favorable outcome / Possible outcome = 0.06 * n / n = 0.06

Hence, B.
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Re: Forty percent of the residents of Town T are men, and 15 percent of th [#permalink]
6 men above 60.
So probable/ total = 6/100 = 0.06

Posted from my mobile device
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Re: Forty percent of the residents of Town T are men, and 15 percent of th [#permalink]
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Re: Forty percent of the residents of Town T are men, and 15 percent of th [#permalink]
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