Problema Solution

A person invested $24,000 in three funds paying 5%,7%,and 9% simple interest. The total interest from these investments was $2,600. The amount of money invested at 5% was $200 less than the amount invested at 7% and 9% combined. How much was invested in each fund? Use a system of equations with the information given and solve. Please explain all steps.

Answer provided by our tutors

let invested money rsp.  be x,y,z

atts x+200=y+z

and x+y+z=24000

and 5x/100+7y/100+9z/100=2600

now solve them..x=11900

solve for y and z