A trust fund has Rs \(30,000\) that must be invested in two different types of bonds.
The first bond pays \(5\)% interest per year, and the second bond pays \(7\)% interest per year.
Using matrix multiplication, determine how to divide Rs \(30,000 \) among the two types of bonds.
If the trust fund must obtain an annual total interest of:
\(A.\) Rs \(1,800 \)
\(B.\) Rs \(2,000\)