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May 4th, 2017, 01:00 PM  #1 
Newbie Joined: Apr 2017 From: brasil Posts: 12 Thanks: 0  Help me, it's to be done in 1 hour. :(
If the capital is equal to twothirds of the interest and the term of application is 5 months, what is the interest rate considered?

May 4th, 2017, 01:20 PM  #2 
Senior Member Joined: Sep 2015 From: CA Posts: 1,265 Thanks: 650 
$i=\dfrac 3 2 c$ $c+i = c(1+r)^5$ where $r$ is the monthly interest you finish 

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