Questions about the world of GRE Math from other sources and general math related questions.
robinphilip01
Students
 
Posts: 18
Joined: Mon Nov 10, 2014 7:01 pm
 

compound interest

by robinphilip01 Fri Dec 26, 2014 6:29 am

Hi Tommy,
For compound interest calculating ,is it the right way to calculate the value of numbers like (1.035)ᶺ12 by repeated calculator entry ..?
Is there any easy way ..?
Robin
tommywallach
Manhattan Prep Staff
 
Posts: 1917
Joined: Thu Mar 31, 2011 11:18 am
 

Re: compound interest

by tommywallach Sat Dec 27, 2014 6:03 pm

Hey Robin,

I would only worry about it in the context of actual questions, if that makes sense. People often stress about their idea of how a concept might be tested, because they don't understand that, in reality, the GRE tests everything on a very friendly level. Compound interest does often involve raising something to a power, but usually it's a low number, so easy to multiply out on the calculator (i.e. compounded semi-annually or quarterly, rather than monthly, as expressed in your example).

-t
robinphilip01
Students
 
Posts: 18
Joined: Mon Nov 10, 2014 7:01 pm
 

Re: compound interest

by robinphilip01 Mon Dec 29, 2014 7:02 am

Thankyou..
tommywallach
Manhattan Prep Staff
 
Posts: 1917
Joined: Thu Mar 31, 2011 11:18 am
 

Re: compound interest

by tommywallach Thu Jan 01, 2015 6:15 pm

No problem!