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9 February, 23:07

Using the rule of 72, how long will it take for the principal to double with an annual compound interest rate of 6%?

A. 6

B. 9

C. 12

D. 15

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Answers (1)
  1. 9 February, 23:37
    0
    C. 12

    Step-by-step explanation:

    With the rule of 72, you would divide 72 by the periodic interest rate to get the number of years for the principal to double

    72 : 6 = 12
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