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December 3rd, 2018, 09:43 PM  #1 
Banned Camp Joined: Dec 2018 From: rt6 Posts: 6 Thanks: 0  How to find compound interest
Hello How to find compound interest if there is compound amount is Rs 5774 and time is 6 months principle amount is Rs5662 and interest is Rs112 how to find interest ? CI=P[(1+r)^n1] 
December 3rd, 2018, 10:49 PM  #2 
Senior Member Joined: Sep 2015 From: USA Posts: 2,427 Thanks: 1314 
If I understand this an investment of Rs5662 was made at $r$ % interest for 6 months and it resulted in Rs112 interest. And you want to find the rate $r$? Compounded monthly? $\left(1+\dfrac{r}{12}\right)^6\times 5662 = 5774$ $\left(1+\dfrac{r}{12}\right)^6 = \dfrac{5774}{5662}$ $1+\dfrac{r}{12} = \left(\dfrac{5774}{5662}\right)^{1/6}$ $r = 12\left(\left(\dfrac{5774}{5662}\right)^{1/6}1\right)$ $r = 0.03924 = 3.924\%$ 
December 3rd, 2018, 11:17 PM  #3 
Banned Camp Joined: Dec 2018 From: rt6 Posts: 6 Thanks: 0 
Hello sir What is formula of solving this 
December 4th, 2018, 12:41 AM  #4 
Senior Member Joined: Sep 2015 From: USA Posts: 2,427 Thanks: 1314  
December 4th, 2018, 12:48 AM  #5 
Banned Camp Joined: Dec 2018 From: rt6 Posts: 6 Thanks: 0 
Hello Sir What is n and t its unit 
December 4th, 2018, 03:30 AM  #6 
Banned Camp Joined: Dec 2018 From: rt6 Posts: 6 Thanks: 0 
Hello sir How you get n=12 and nt=1/6 
December 4th, 2018, 05:24 AM  #7 
Senior Member Joined: May 2016 From: USA Posts: 1,310 Thanks: 551 
This is an old troll under a new name.

December 4th, 2018, 05:54 AM  #8 
Math Team Joined: Oct 2011 From: Ottawa Ontario, Canada Posts: 14,412 Thanks: 1024  
December 4th, 2018, 07:58 PM  #9 
Banned Camp Joined: Dec 2018 From: rt6 Posts: 6 Thanks: 0 
Hello sir please explain the formula how to get n and t 
December 5th, 2018, 05:33 AM  #10 
Math Team Joined: Oct 2011 From: Ottawa Ontario, Canada Posts: 14,412 Thanks: 1024 
n = 14th letter, t = 20th letter (6 from the end!).


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