simple ps problems...can anyone help

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simple ps problems...can anyone help [#permalink]

10 Feb 2011, 06:04

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On Saturday morning, Malachi will begin a camping vacation and he will return home at
the end of the first day on which it rains. If on the first three days of the vacation the
probability of rain on each day is 0.2, what is the probability that Malachi will return
home at the end of the day on the following Monday?
A. 0.008
B. 0.128
C. 0.488
D. 0.512
E. 0.640

Last year the price per share of Stock X increased by k percent and the earnings per share
of Stock X increased by m percent, where k is greater than m. By what percent did the
ratio of price per share to earnings per share increase, in terms of k and m?
A. k m %
B. (k – m) %
6
C. [100(k – m)] / (100 + k) %
D. [100(k – m)] / (100 + m) %
E. [100(k – m)] / (100 + k + m) %

Which of the following is equal to (212 – 26) / (26 – 23)?
A. 26 + 23
B. 26 - 23
C. 29
D. 23
E. 2

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Re: simple ps problems...can anyone help [#permalink]

10 Feb 2011, 06:20

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Re: simple ps problems...can anyone help [#permalink] 10 Feb 2011, 06:20

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simple ps problems...can anyone help

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simple ps problems...can anyone help

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