Let a be the tickets that cost 10 each and b the tickets that cost 60 each. So therefore, a + b = 500 and 10a + 60b = 6000. By substituting the given numbers, a will be equals to 480. So the tickets sold are: 480 tickets for 10 each and 20 tickets for 60 each. Thank you for posting your question. I hope this answer helped you. Let me know if you need more help.