10. John borrows $X To repay this loan, John makes a series of repayments of $1 at the end of years 3k 2, k = 1, 2, ..., 10, and another series of repayments of $2 at the end of years 3k 1, k = 1, 2, ..., 10. The annual effective interest rate is 6%. Calculate X. (Hint: Follow the derivation of an:] 10. John borrows $X To repay this loan, John makes a series of repayments of $1 at the end of years 3k 2, k = 1, 2, ..., 10, and another series of repayments of $2 at the end of years 3k 1, k = 1, 2, ..., 10. The annual effective interest rate is 6%. Calculate X. (Hint: Follow the derivation of an:]