A total of 25 tickets were sold for a play. Adult tickets cost $12 each and child tickets cost $8 each. If the total revenue from ticket sales was $260, how many adult tickets were sold?

✓ Correct Answer: Option C

Let A be adult and C be child tickets. A + C = 25 and 12A + 8C = 260. From the first equation, C = 25 - A. Substitute into the second: 12A + 8(25 - A) = 260. Simplify: 12A + 200 - 8A = 260. So, 4A = 60, and A = 15.