How many different ways can he invest his money if he invests more on the higher rank and less for the lower rank?
How many different ways can he invest his money if he invests more on the higher rank and less for the lower rank?
Chapter9: Sequences, Probability And Counting Theory
Section9.5: Counting Principles
Problem 42SE: In horse racing, a “trifecta” occurs when a bettor wins by selecting the first three finishers in...
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Suppose an investor has a choice of 7 businesses in which to put his investments. He decides to rank each business according to certain criteria, such as rate of return and payback period. He then resolves to invest in the top 3 businesses. How many different ways can he invest his money if he invests more on the higher rank and less for the lower rank?
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