Question

A small corporation borrowed $500,000 to expand its software line with

an interest $43,500. Some of the money was borrowed at 8%, some at
9%, and some at 10%. The amount borrowed at 8% was two and half
times the amount borrowed at 10%. How much did the corporation invest
at 9% interest?

Answer 1

The amount borrowed by the corporation at 3%. 4% and 5% are $100,000, $250.000 and $150,000 respectively.