Alice gleason invested a portion of $32000 at 9% interest and the balance at 11% interest. how much did she invest each rate if her total income from both investments was $3200.

Alice Gleason invested $ 16000 at 9 % interest and $ 16000 at 11 % interest

Solution:

Given, Alice Gleason invested a portion of $32000 at 9% interest and the balance at 11% interest.  

We have to find how much did she invest each rate if her total income from both investments was $3200.

Let the 1st part of amount be y, then second part will be $32000 – y.

Where "p" is principal amount

"n" is number of years

"r" is rate of interest

Now, according to given information,  

Simple interest for 1st part + simple interest for 2nd part = 3200

Considering to be for 1 year,

She invested $ 16000 at 9 % interest and $ 16000 at 11 % interest

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