Thank you for your question!
Since the question is asking us to compute the bank discount using ordinary interest we want to apply the ordinary interest rate formula: (Principal * Rate * Time) / 360.
For this question the Principal is the amount borrowed ($2000), the Rate is the 6% or 0.06, and the Time is 92 since there are 92 days between June 5 and September 5.
So putting that all together the calculation here would be
($2000 * 0.06 * 92) / 360 = $30.67.