The sales of an organisation within an accounting period were $180,000, opening accounts receivable was $60,000, and closing accounts receivable was $90,000. There were no doubtful debts expenses for the period. All sales were made on credit terms, meaning there were no cash sales. How much cash was actually received from customers within the accounting period?

Question 20 options:

1)	$180,000
2)	$150,000
3)	$170,000
4)	$240,000