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March 28, 2017

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Which is the best investment for three consecutive years?
a. A growth of 5% followed by a growth of 10% followed by a growth of 15%
b. A growth of 15% followed by a growth of 10% followed by a growth of 5%
c. Three years of growth at 10% per year.

  • math - ,

    http://www.jiskha.com/display.cgi?id=1258772486

  • math - ,

    Do you have to add them all together or multpily?

  • math - ,

    did you not look at the solution I gave in the link ?

  • math - ,

    yes, I saw that, but how do I get the answer on each line to compare them. Do I multiply each line, or add them.

  • math - ,

    first one:
    -you multiply them, brackets mean multiplication

    1.05(1.1)(1.15)
    = 1.05 x 1.1 x 1.15 = 1.32825

    so that is an increase of 32.825%

  • math - ,

    1.32825 is what I got for the b and 1.331 is what I got for c so I guess the answer would be c

  • math - ,

    correct

    c) has the largest number, thus the largest growth

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