Answer:
Account receivable on July 31 = $261,800
Step-by-step explanation:
We would not be making use of the information for June as the question says 60% is collected in the month of sale and 40% is collected in the following month . Therefore as at July 31, all of june sales would have been collected and won't be outstanding
July credit sales = 85% * $770,000 = $654,500
Collected in July (60%) = 60% * $654,500 = $392,700
Receivable as at 31 July = $654,500 - $392,700 = $261,800