How long will it take for $26,000 to double if the interest rate is 6% per year to the nearest 1/100th of a year?
by the rule of 70
amount double in x years =70/rate
=70/6
=11.6666667
=11.67 years
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by future value formula
it will take 11.90 years
the double of $26000 is $52000
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