A person receives $341 per year in simple interest from three investments totaling $3500. Part is invested at?

Question

A person receives $341 per year in simple interest from three investments totaling $3500. Part is invested at 8% part at 9% and part at 10%. There is $2600 more invested at 10% than at 9%. Find the amount invested at each rate.

Answer 1

Call investment 1 A (8%), investment 2 B (9%) and investment 3 C (10%)

A+B+C=3500

.08A+.09B+.1C=341

C=B+2600

You have 3 equations and 3 unknowns which would now should be able to solve.