Party A's interest: X * 5.5% * (1-5%),
Party B's interest: (20-x) * 4.5% * (1-5%),
Column equation: x * 5.5% (1-5%)+(20-x) * 4.5% (1-5%) = 0.76.
X =- 10 (ten thousand)
So, 20-x=30.
Borrow 654.38 million yuan from Party A and deposit 300,000 yuan from Party B (I feel there is something wrong with the subject).
2. solution: let the two forms of interest rate be x and y.
From the meaning of the question: x+y = 3.24%
2000 * X( 1-5%)+ 1000 * Y( 1-5%)= 43.92
X=0.0 14= 1.38%。
Y=0.0 184= 1.86%