Problema Solution

An investor invested a total of $1700 in two mutual funds. One fund earned a 9% profit while the other earned a 6% profit. If investors total profit was $126, how much was invested in each mutual fund?

Answer provided by our tutors

Let  = amount invested @ 9%

Let  = amount invested @ 6%

given:

(1)  a+b = 1700

(2)   .09a + .06b = 126

---------------------

By solving these two, you get 

a = 800, b = 900

$800 was invested @ 9%

$900 was invested @ 6%