A farmer meets his short$-$term capital needs by establishing a line of credit and borrowing as follows. All the borrowed money plus interest is paid back on August $1$ when the crop is sold. Calculate the total amount of interest paid, assuming a $6\%$ annual interest rate. Assume interest accrues on only the outstanding balance $($ie$.$ interest does not compound$).$

March $1,$$$20,000$

April $1,$$$8,000$

May $1,$$$10,000$

July $1,$$$5,000$

$$1150$

$$1050$

$$1075$

$$1175$