Discounting a bond dealer in a bank, the principal value of which is due at the end of 6 months at an average interest of 10% annually, and it was found that the difference between the trade discount and the correct discount is 25 riyals. If you know that the interest rate the discount rate, calculate the following: I) The principal value of the bond. II) Trade discount and trade present value. Correct discount and correct present value. III)